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Guided answer
My patent lapsed. Can it be restored?
Two windows, and the arithmetic that decides which one you are in.
The restoration window has closed.
Once eighteen months from cessation have passed, the patent cannot be restored.
- Check the date carefully before accepting this - the cessation date is not always the date you assumed.
- Review the rest of the portfolio immediately; a lapse this size usually means a systemic docketing failure.
- Record the loss and the cause, so the same gap does not take another patent.
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This is educational guidance, not personalised legal advice. It cannot see your documents, your dates or the prior art, and those are usually what decide the answer. Use it to understand the question, then take advice on your own facts.
Not sure whether this applies to your invention?
The honest answer usually needs someone to look at your actual disclosure, your timeline and the prior art. That is a conversation, not an article.