Term ended Feb 3, 2026 · High confidence
20-year base term ended Feb 3, 2026
Held by Stryker Corporation
Filed Sep 24, 2008 as application 12/237,161 · Granted Apr 27, 2010
Base term, 20 years from filing
Today
Term ended Feb 3, 2026
2006
2026
Clock starts
Feb 3, 2006
Feb 3, 2006
Term ended
Feb 3, 2026
Feb 3, 2026
Granted
Apr 27, 2010
Apr 27, 2010
base term
after the term ends
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 3, 2006, when application 11/347,490, the earliest non-provisional in its chain, was filed (this one was filed Sep 24, 2008) | Feb 3, 2026 | 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 | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Feb 3, 2026 | High confidence |
This family
| US 7,795,491 | In force Dec 2026 | Dec 2026 |
| US 7,703,674 | this patent Feb 2026 | Feb 2026 |
The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Sep 13, 2011 Reel 26894, frame 612 | Stewart, Brian E.; Soichet, Nicolas | Patient Safety Technologies, Inc. | Assignment of Assignor's Interest |
| Nov 22, 2013 Reel 31713, frame 54 | Patient Safety Technologies, Inc.; Surgicount Medical, Inc. | Diamond Creek Capital, LLC | Security Agreement |
| Mar 24, 2014 Reel 32508, frame 344 | Diamond Creek Capital, LLC | Patient Safety Technologies, Inc.; Surgicount Medical, Inc. | Release of Security Interest |
| Mar 24, 2014 reel/frame not recorded | Diamond Creek Capital, LLC | Patient Safety Technologies, Inc. | Release of Security Interest |
| Mar 24, 2014 reel/frame not recorded | Diamond Creek Capital, LLC | Surgicount Medical, Inc. | Release of Security Interest |
| Jan 29, 2016 Reel 37621, frame 80 | Patient Safety Technologies, Inc. | Stryker Corporation | Merger |
| Dec 18, 2024 Reel 69737, frame 184 | Stryker Corporation | Stryker Corporation | Change of Address |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
Citations
110
later US patents cite this one
That is top 10% of utility patents granted in 2010 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.