Term ends Jun 28, 2031 · High confidence
20-year base term ends Apr 15, 2031
Held by Smith & Nephew, Inc.
Filed Dec 2, 2021 as application 17/540,886 · Granted May 28, 2024
Base term plus 74 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Apr 15, 2011
Apr 15, 2011
Term ends
Jun 28, 2031
Jun 28, 2031
Granted
May 28, 2024
May 28, 2024
base term
patent term adjustment
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
74
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
11
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 74 days past its 20-year base term on prosecution delay. 0 of 1 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 Apr 15, 2011, when application 13/088,327, the earliest non-provisional in its chain, was filed (this one was filed Dec 2, 2021) | Apr 15, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +74 days, USPTO patent term adjustment record | Jun 28, 2031 | 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 | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 28, 2031 | High confidence |
This family
| US 8,585,773 | In force Oct 2031 | Oct 2031 |
| US 9,878,141 | Lapsed on the fee record Jan 2026 | Jan 2026 |
| US 10,278,801 | In force Jan 2032 | Jan 2032 |
| US 10,307,238 | In force Oct 2031 | Oct 2031 |
| US 11,185,402 | In force Jan 2032 | Jan 2032 |
| US 11,229,509 | In force Nov 2031 | Nov 2031 |
| US 11,872,117 | In force Aug 2031 | Aug 2031 |
| US 11,992,396 | this patent Jun 2031 | Jun 2031 |
8 of 11 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
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
Jun 2031
Term ends Jun 28, 2031. Maintenance fees still fall due before then
Note
The 74 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.