The renewal that lapsed during an acquisition

Can the patent be brought back?

The windows

A renewal may be paid late within a six-month extension available on request with fee. That had long passed.

Beyond that, restoration is possible, but the application must be made within eighteen months from the date the patent ceased to have effect. Fourteen months after a lapse that itself began earlier, the window is close and may have gone - the arithmetic has to be done carefully from the exact cessation date.

What restoration does not undo

Even where restoration is granted, third parties who began working the invention during the lapse may keep protections. And the licensee, having been told the patent lapsed, now has a commercial argument about royalties for the intervening period.

The transaction that caused it - a change of custody with no handover of the docket - is one of the two or three most common ways Indian patents are lost.

What should have happened

• Made the renewal docket an explicit transfer item in the acquisition checklist, with a named owner on each side.
• Updated the address for service on the register at completion.
• Run a portfolio-wide renewal audit within thirty days of closing.
• Kept the outgoing agent engaged for one renewal cycle as a safety net.

This scenario is a composite teaching example written by Ragulika IP. It does not describe any real client, application or matter, and any resemblance to a specific case is coincidental.