Lapsed Aug 27, 2025 on the fee record · Medium confidence
20-year base term ends Jan 10, 2027
Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.
Third maintenance fee unpaid; grace period ended.
Jan 10, 2007
Aug 27, 2025
Aug 27, 2013
Jan 10, 2027
Its term would have run to Jan 10, 2027: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jan 10, 2007, when application 11/651,807, the earliest non-provisional in its chain, was filed (this one was filed Feb 14, 2011) | Jan 10, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed Aug 27, 2025 | High confidence |
| Computed term end | The steps above, in order | Aug 27, 2025 | Medium confidence |
This family
| US 8,459,520 | Lapsed on the fee record Jun 2025 | Jun 2025 |
| US 8,517,243 | this patent Aug 2025 | Aug 2025 |
| Application 13/037,498 | Abandoned not computed | not computed |
| US 8,684,253 | Lapsed on the fee record Apr 2026 | Apr 2026 |
| US 8,479,969 | In force Jan 2027 | Jan 2027 |
| Application PCT/US2012/026997 | PCT application no patent term | no patent term |
| Application PCT/US2012/039156 | PCT application no patent term | no patent term |
| Application 13/489,500 | Abandoned not computed | not computed |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Feb 17, 2011 Reel 25823, frame 988 | Giordano, James R.; Swayze, Jeffrey S.; Shelton, Frederick E., IV | Ethicon Endo-Surgery, Inc. | Assignment of Assignor's Interest |
| Dec 6, 2015 Reel 37220, frame 212 | Ethicon Endo-Surgery, Inc. | Ethicon Endo-Surgery, LLC | Assignment of Assignor's Interest |
| Feb 27, 2017 Reel 41821, frame 186 | Ethicon Endo-Surgery, LLC | Ethicon LLC | Change of Name |
| Apr 27, 2021 Reel 56601, frame 339 | Ethicon LLC | Cilag GmbH International | Assignment of Assignor's Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Aug 27, 2025. We will not guess the cap.