Lapsed Nov 12, 2017 on the fee record · High confidence
20-year base term ends Jan 16, 2029
First maintenance fee unpaid; grace period ended.
Held by Howmedica Osteonics Corp.
Filed Jan 16, 2009 as application 12/321,373 · Granted Nov 12, 2013
Base term, 20 years from filing, plus 588 days of patent term adjustment (USPTO delay)
Today
Lapsed Nov 12, 2017
2009
2030
Clock starts
Jan 16, 2009
Jan 16, 2009
No longer in force
Nov 12, 2017
Nov 12, 2017
Granted
Nov 12, 2013
Nov 12, 2013
Term would have run to
Aug 27, 2030
Aug 27, 2030
base term
patent term adjustment
after the term ends
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
588
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 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.
3
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 Aug 27, 2030: its 20-year base term plus 588 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 Jan 16, 2009, when this application, 12/321,373, was filed | Jan 16, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +588 days, USPTO patent term adjustment record | Aug 27, 2030 | 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 3 maintenance fees paid | lapsed Nov 12, 2017 | High confidence |
| Computed term end | The steps above, in order | Nov 12, 2017 | High confidence |
This family
| US 8,579,911 | this patent Nov 2017 | Nov 2017 |
| US 9,539,114 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| US 10,245,154 | In force Jun 2029 | Jun 2029 |
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 9, 2009 Reel 23213, frame 684 | Dudasik, Michael W. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 588 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% 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.