Term ends Aug 30, 2033 · High confidence
20-year base term ends Aug 2, 2033
Held by Stryker Corporation
Filed Aug 2, 2013 as application 13/958,070 · Granted Sep 1, 2015
Base term plus 28 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
Aug 2, 2013
Aug 2, 2013
Term ends
Aug 30, 2033
Aug 30, 2033
Granted
Sep 1, 2015
Sep 1, 2015
base term
patent term adjustment
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
28
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
25
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 runs 28 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Aug 2, 2013, when this application, 13/958,070, was filed | Aug 2, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +28 days, USPTO patent term adjustment record | Aug 30, 2033 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 30, 2033 | High confidence |
This family
| US 9,588,583 | In force Aug 2032 | Aug 2032 |
| US 9,119,655 | this patent Aug 2033 | Aug 2033 |
| US 9,226,796 | In force Aug 2033 | Aug 2033 |
| Application PCT/US2014/025975 | PCT application no patent term | no patent term |
| US 9,566,122 | In force Aug 2033 | Aug 2033 |
| US 9,681,920 | In force Aug 2033 | Aug 2033 |
| US 9,566,125 | In force Aug 2033 | Aug 2033 |
| US 9,820,818 | In force Aug 2033 | Aug 2033 |
8 of 25 applications in this family shown, earliest filings first. 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 27, 2013 Reel 31294, frame 709 | Bowling, David G.; Stuart, John M.; Culp, Jerry A.; Malackowski, Donald W.; De La Barrera, Jose Luis Moctezuma; Roessler, Patrick; Beer, Joel N.; Ketchel, John | Stryker Corporation | Assignment of Assignor's Interest |
| 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.
What's changing
Aug 2033
Term ends Aug 30, 2033. Maintenance fees still fall due before then
Note
The 28 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
706
later US patents cite this one
That is top 1% of utility patents granted in 2015 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.