Patent Restoration in Nepal: Can a Lapsed Patent Come Back?
Patent restoration in Nepal, honestly: the 35-day window, the 6-month grace with a NPR 1,000 fine, and why a patent past grace cannot come back.
The question arrives at the worst possible moment: the annual maintenance was missed, grace has nearly run, and someone asks whether a Nepalese patent can be restored. The honest answer is short, and it is the reason this question should never get that far.
Here is how lapse works under the PDTA, what restoration genuinely does and does not exist, and the calendar discipline that makes the question academic.
In short
Patent restoration in Nepal is effectively unavailable: an annual maintenance missed within 35 days of expiry can still be paid through a 6-month grace period with a NPR 1,000 fine, but once grace lapses the patent is cancelled automatically and permanently — the published specification is prior art against its own refiling. Contrast trademarks, which have a recognised after-expiry route, and designs, which can sometimes be refiled; and build the renewal calendar instead.
How a Nepalese patent lapses
Patent maintenance runs annually inside each renewal term: NPR 5,000 per year across years 7–14 and NPR 7,500 per year across years 14–21 in current practice, filed on Schedule 2(d). Each payment is due within 35 days of the relevant expiry — and in accepted practice may be filed before the anniversary, which removes the deadline entirely.
Miss the 35-day window and a 6-month grace period opens, at the same fee plus a NPR 1,000 fine. Beyond grace, cancellation is automatic: no hearing, no discretion, no revival proceeding.
The honest answer on patent restoration in Nepal
The patent column is the stark one. Because a Nepalese patent publishes its disclosure, the knowledge is out in the world even when the right is dead — a refiled application would face its own earlier publication as prior art. Novelty, once consumed, cannot be restored.
| Right | After the grace period lapses | Why |
|---|---|---|
| Trademark | Restoration route after expiry — a recognised, if unforgiving, path | 7-year renewable rights; the mark can sometimes be recovered |
| Industrial design | Occasionally refiled while the look is still new to the register | A loophole, not a plan — and it fails once published |
| Patent | No revival — cancellation is permanent | The published specification is prior art against its own refiling |
Why the rule is this strict
The severity is policy, not accident. Nepal's system pairs a short 7-year base term with annual fees and an absolute ceiling at 21 years: the register is meant to hold inventions that are being worked, and the annual fee is the test. A no-revival rule sharpens that test — and it protects third parties who relied on the lapse, often by beginning to use the technology freely.
The practical reading: a Nepalese patent is a use-it-or-lose-it asset, by design.
Preventing accidental lapse: the calendar is the cure
Diarise from the grant certificate
The renewal clock runs from registration, in BS and AD. Compute every annual due date the day the certificate arrives, with the 35-day window and grace deadline marked.
File early, through a current mandate
Renewals route through the agent of record under the Power of Attorney on file — an agent transition at renewal time is how good patents die.
Decide, do not drift
A patent allowed to lapse should be a written decision — working status reviewed, reasons recorded. Accidental lapse and strategic lapse look identical on the register, but only one of them is defensible inside the company.
If the patent is already gone
Three realistic options remain. First, check whether an improvement — a genuinely new and better version of the invention — can stand as its own application; improvements with real novelty clear the novelty test that the dead patent itself now fails. Second, protect what is left by other means: trade-secret discipline around the unpatented process details, and brand protection on the products. Third, for foreign-linked portfolios, verify what protection still exists elsewhere — a Nepalese lapse does not touch a patent in another country.
What does not exist is the nostalgic route: no fee, letter or explanation brings a grace-lapsed Nepalese patent back.
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This article is general information, not legal advice.