Term ends Sep 13, 2029 · High confidence
20-year base term ends Jul 9, 2028
Held by Smith & Nephew PLC
Filed Feb 5, 2010 as application 12/672,468 · Granted Sep 23, 2014
Base term plus 431 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Jul 9, 2008
Jul 9, 2008
Term ends
Sep 13, 2029
Sep 13, 2029
Granted
Sep 23, 2014
Sep 23, 2014
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
431
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
28
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 431 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jul 9, 2008, when application PCT/GB2008/002346, the earliest non-provisional in its chain, was filed (this one was filed Feb 5, 2010) | Jul 9, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +431 days, USPTO patent term adjustment record | Sep 13, 2029 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Sep 13, 2029 | High confidence |
This family
| Application 12/667,228 | Abandoned not computed | not computed |
| US 8,974,429 | In force Mar 2029 | Mar 2029 |
| Application 12/672,065 | Abandoned not computed | not computed |
| US 8,843,327 | this patent Sep 2029 | Sep 2029 |
| Application 12/672,490 | Abandoned not computed | not computed |
| US 8,494,349 | Lapsed on the fee record Jul 2025 | Jul 2025 |
| US 8,444,392 | In force Jun 2030 | Jun 2030 |
| Application 12/672,472 | Abandoned not computed | not computed |
8 of 28 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 |
|---|---|---|---|
| Mar 28, 2013 Reel 30110, frame 55 | Vernon-harcourt, Edward; Turner, Jake; Gordon, Benjamin | Smith & Nephew PLC | Assignment of Assignor's Interest |
| Jun 10, 2019 Reel 49420, frame 895 | Smith & Nephew PLC | Smith & Nephew PLC | Address Change |
| Jun 18, 2019 Reel 49510, frame 609 | Smith & Nephew PLC | Smith & Nephew PLC | Corrective Assignment to Correct the Assignee Address Previously Recorded at Reel: 049420 Frame: 0895. Assignor(S) Hereby Confirms the Assignment. |
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
Sep 2029
Term ends Sep 13, 2029. No further fees fall due before then
Note
The 431 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
214
later US patents cite this one
That is top 5% of utility patents granted in 2014 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.