Term ended Apr 22, 2023 · High confidence
20-year base term ended Apr 22, 2023
USPTO later recorded it as expired for non-payment on Aug 24, 2026.
Held by Howmedica Osteonics Corp.
Filed Jan 9, 2013 as application 13/737,500 · Granted Jul 22, 2014
Base term, 20 years from filing
Today
Term ended Apr 22, 2023
2003
2026
Clock starts
Apr 22, 2003
Apr 22, 2003
Term ended
Apr 22, 2023
Apr 22, 2023
Granted
Jul 22, 2014
Jul 22, 2014
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 6,706,068, US 8,366,772, to Apr 22, 2023. The term already ends on or before that date, so the cap shortened nothing.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
76
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 22, 2003, when application 10/420,423, the earliest non-provisional in its chain, was filed (this one was filed Jan 9, 2013) | Apr 22, 2023 | 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 | Disclaimer resolved from the filed document (refs US 6,706,068, US 8,366,772) | resolves to Apr 22, 2023, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Aug 24, 2026, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Apr 22, 2023 | High confidence |
This family
| US 6,706,068 | Term ended Apr 2023 | Apr 2023 |
| Application PCT/US2003/012500 | PCT application no patent term | no patent term |
| US 8,366,772 | Lapsed on the fee record Feb 2025 | Feb 2025 |
| Application PCT/US2007/020562 | PCT application no patent term | no patent term |
| Application PCT/US2010/031247 | PCT application no patent term | no patent term |
| Application 12/442,181 | Abandoned not computed | not computed |
| US 8,998,924 | In force Nov 2030 | Nov 2030 |
| US 8,784,492 | this patent Apr 2023 | Apr 2023 |
8 of 76 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 11, 2013 Reel 29635, frame 983 | Ferree, Bret A.; Tompkins, David | Riverbend Design LLC | Assignment of Assignor's Interest |
| Jan 11, 2013 Reel 29636, frame 45 | Riverbend Design LLC | Spinecore, Inc. | Assignment of Assignor's Interest |
| Sep 25, 2020 Reel 53897, frame 621 | Spinecore, Inc. | Howmedica Oteonics Corp. | Merger |
| Sep 30, 2020 Reel 53941, frame 753 | Spinecore, Inc. | Howmedica Osteonics Corp. | Corrective Assignment to Correct the Assignee Name Previously Recorded at Reel: 053897 Frame: 0621. 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.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 6,706,068, US 8,366,772, ends no earlier than this term, so it caps nothing.
Citations
6
later US patents cite this one
That is below the median 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.