Let’s start with the obvious: It is almost certain that the law firm you use does not have enough malpractice insurance to cover a multi-billion-dollar loss. Firing the employee who cost you billions won’t bring the money back or even come close. The point is that there are some mistakes you just don’t recover from — and one of them is allowing your intellectual property rights to expire. IP law (and patent law in particular) has deadlines that, if missed, can have catastrophic consequences.
Patents aren’t set-and-forget. They’re more like a living being — if you forget to feed it, it dies. After securing a patent, owners must pay maintenance fees (also called renewal fees) to keep it in force. Miss a payment, and the patent lapses, meaning anyone can use the invention freely. It sounds like a simple problem to solve: Get a calendar and use it. Yet history is riddled with costly examples of small unpaid fees or missed deadlines leading to the loss of patents worth millions or even billions. This post looks at why tracking and paying maintenance fees on time is absolutely essential – highlighting real-world IP disasters like the recent Ozempic patent loss in Canada – and how you can avoid watching your IP vanish into thin error (omg, so sorry, dad joke, I couldn’t help it).
Let’s start with my own story. I disclosed an invention to my patent lawyer back in the age of dinosaurs (to hear my kids describe the 1990’s) and postal-mail patent filings. We filed the provisional patent application on April 15, and prepared the utility application for filing on April 15 of the following year. We sent drafts back and forth with counsel, and everything was ready to file. The lawyer did whatever patent lawyers do with paper filings (printing, formatting, stapling, getting paper cuts, etc.) and sent it via courier to the US Post Office at LAX (which was open 24/7 at the time). Once we got that postmark for April 15, we’d be timely on file and get the priority date of our provisional. Great! We’re done! Except … no.
It turns out that April 15 is tax day, and there was a line at the post office (the courier told us) that went on for blocks. He got in line around 6 pm and got the application mailed a couple of minutes after midnight. The result? It was postmarked and, therefore, dated April 16. We missed the one-year deadline by minutes. But missing by minutes was no different than missing it by years: We lost the priority date. As an aside, lesson learned: Never wait until the due date to file. You never know when a glitch will hit. And before you protest, “but we can e-file”, remember that even huge companies experience long outages. The difference is that if Instagram is down for a day, you’ll have a twitchy, bored scrolling thumb. If the USPTO goes down for a day, you might have a dead patent.
From Wallet‑Sized Mistake to Balance Sheet Catastrophe
Ozempic racked up roughly C$2.5 billion in Canadian sales last year alone—Canada’s single‑biggest drug spend. Analysts peg the coming generic wave (set to rush in when data exclusivity ends in January 2026) at a 50‑80 % price drop, with Novo’s market share likely to collapse just as fast. Even a conservative model—60 % drop on flat sales for 2026‑27—rips $3 billion (Canadian dollars) off the top line. That’s the cost of forgetting to feed the parking meter—only the meter sat outside a vault of gold.
This is one of the most dramatic recent examples of why the minutiae are critical. Novo Nordisk, a pharmaceutical giant that definitely should have known better, permanently forfeited its Canadian patent on semaglutide – the active ingredient in best-selling diabetes/weight-loss drugs Ozempic and Wegovy – simply by failing to pay a routine annual maintenance fee. In 2019, the company missed a payment of about C$450 (including late penalties) and even let the one-year grace period lapse, after previously hesitating over a mere C$250 fee the year before. Under Canadian law, once the grace period passes, the patent cannot be revived. We have a photo from the scene below:
I could write pages on this, but it would do a disservice by complicating it. The story is simple and doesn’t need embellishment: Patent law is unforgiving, and a tiny error can break the bank. Luckily, there are law firms and companies that manage these kinds of payments. Unluckily for Novo, they didn’t take advantage of those services.
IBM’s “Voluntary” Patent Bonfire—Proof that a Patent Fire Spreads
Think this is a pharma‑only risk? Not so much. Over the past decade, IBM has let thousands of U.S. patents expire simply by skipping the first 3½‑year fee, a strategy that slashed maintenance costs but also surrendered patents that competitors now use for free. Imagine burning down an R‑and‑D skyscraper every quarter to avoid a big electricity bill. The logic just isn’t there.
The Small Inventor Tragedy: “It Went to Spam” Isn’t a Defense
At the other end of the food chain (see efficient infringement), the Taillefer case shows how a single inventor’s patent evaporated after routine fee reminders landed in a junk‑mail folder. Canada’s Federal Court made it clear (painfully so — imagine spam costing you a patent): “due care” demands solid backup systems, and there are no second chances. A miscalibrated spam filter can trash a decade of work.
It Isn’t Just Patents
Domain names and trademarks are two other examples of rights that you can lose just by forgetting to pay a fee. U.S. copyrights lose the ability to command statutory damages for infringement if you don’t register on time.
Deadlines Don’t Discriminate — or Forgive
We could add more war stories: The Medicines Company’s 24‑hour late filing that nearly sent Angiomax over the patent cliff and birthed a malpractice suit against two belt-and-suspenders law firms. The details differ, but the key part of the story is the same: maintenance, docketing, and extension dates look like small concerns, but they are small in the way that a hydrogen bomb (ok, super nerdy, but the Tsar Bomba, with a 50+ megaton payload, weighs less than the conventional MOAB/GBU-43 with its 11 ton payload). Ignore small-appearing details at your peril. In IP, the smallest calendaring error can demolish your patent as completely as a nuclear bomb.
So, How Do We Make Sure It Doesn’t Happen to Us?
The question seems complex, but it isn’t. First, calendar in at least three different systems. Just for security, sign up for a few services that email reminders far into the future and use those in addition to the calendaring systems.
Make sure your spam filters are set up to let emails with the appropriate patent office through.
Perhaps the best way to reduce the risk (although see above — no company has enough insurance to cover your loss if they mess up) is to have a professional service or law firm manage your maintenance fees for you. Even so, calendar the fee payment in multiple systems.
Failure is Not Fatal: It is the Courage to Continue that Counts (quote often attributed to Churchill)
Yes, a missed date can feel like the end of the world, but remember Edison’s advice that every failure merely points out “another way that won’t work.” The Ozempic fiasco is a horror story only if we file it under “unavoidable.” Re‑file it under “tuition,” and we walk away with a priceless degree in Operational Vigilance—no student‑loan payments required. I mean, to be clear, it sucks for Novo, and had it happened in the US market, it might have thrown them into a real financial crisis. But it is also a mistake they won’t make again (if they do, some might say they deserve to go under).
Let’s turn that multi-billion-dollar loss into a lesson. If you can’t afford a law firm or annuity payments firm (with enough malpractice coverage to make good on a mistake, but even a huge policy would likely cover the value of only moderately valuable patents) to manage your payments. Maybe tape bright‑red index cards with upcoming fee dates above your monitor, get a physical calendar, pay your friends to remind you — why should genius be scared of looking low‑tech? You’re creative– feel free to comment below about how you manage dates.
The bottom line is clear: As powerful as a valid patent is, a simple calendaring error can take it out permanently.
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