Lapsed Jan 8, 2025 on the fee record · High confidence
20-year base term ended Apr 27, 2025
Third maintenance fee unpaid; grace period ended.
Held by Smith & Nephew PLC
Filed Sep 22, 2008 as application 10/599,725 · Granted Jan 8, 2013
Base term, 20 years from filing, plus 947 days of patent term adjustment (USPTO delay)
Today
Lapsed Jan 8, 2025
2005
2027
Clock starts
Apr 27, 2005
Apr 27, 2005
No longer in force
Jan 8, 2025
Jan 8, 2025
Granted
Jan 8, 2013
Jan 8, 2013
Term would have run to
Nov 30, 2027
Nov 30, 2027
base term
patent term adjustment
after the term ends
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
947
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.
34
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Nov 30, 2027: its 20-year base term plus 947 days of term adjustment for prosecution delay. 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 27, 2005, when application PCT/GB2005/001595, the earliest non-provisional in its chain, was filed (this one was filed Sep 22, 2008) | Apr 27, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +947 days, USPTO patent term adjustment record | Nov 30, 2027 | 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 | lapsed Jan 8, 2025 | High confidence |
| Computed term end | The steps above, in order | Jan 8, 2025 | High confidence |
This family
| US 8,257,327 | In force May 2029 | May 2029 |
| US 7,883,494 | Lapsed on the fee record Feb 2023 | Feb 2023 |
| US 8,105,295 | In force Apr 2027 | Apr 2027 |
| US 8,348,910 | this patent Jan 2025 | Jan 2025 |
| US 8,162,909 | Lapsed on the fee record Apr 2024 | Apr 2024 |
| Application 12/066,730 | Abandoned not computed | not computed |
| Application 12/066,578 | Abandoned not computed | not computed |
| Application 10/599,728 | Abandoned not computed | not computed |
8 of 34 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 |
|---|---|---|---|
| Jan 3, 2008 Reel 20368, frame 866 | Blott, Patrick Lewis; Hartell, Edward Yerbury; Nicolin, Derek | Smith & Nephew PLC | Assignment of Assignor's Interest |
| Sep 22, 2008 Reel 21571, frame 646 | Lee-webb, Julian | Smith & Nephew PLC | Assignment of Assignor's Interest |
| Jun 9, 2011 Reel 26419, frame 123 | Green, Clare; Martin, Robin Paul | 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
Note
The 947 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
182
later US patents cite this one
That is top 5% of utility patents granted in 2013 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.