Lapsed Apr 12, 2023 on the fee record · High confidence
20-year base term ends Apr 19, 2027
Third maintenance fee unpaid; grace period ended.
Held by Zimmer Biomet Spine, Inc.
Filed Apr 19, 2007 as application 11/737,151 · Granted Apr 12, 2011
Base term, 20 years from filing, plus 1027 days of patent term adjustment (USPTO delay)
Today
Lapsed Apr 12, 2023
2007
2030
Clock starts
Apr 19, 2007
Apr 19, 2007
No longer in force
Apr 12, 2023
Apr 12, 2023
Granted
Apr 12, 2011
Apr 12, 2011
Term would have run to
Feb 9, 2030
Feb 9, 2030
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
1,027
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.
4
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 Feb 9, 2030: its 20-year base term plus 1027 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 19, 2007, when this application, 11/737,151, was filed | Apr 19, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1027 days, USPTO patent term adjustment record | Feb 9, 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 | 2 of 3 maintenance fees paid | lapsed Apr 12, 2023 | High confidence |
| Computed term end | The steps above, in order | Apr 12, 2023 | High confidence |
This family
| US 7,922,725 | this patent Apr 2023 | Apr 2023 |
| US 8,632,572 | Surrendered on reissue May 2019 | May 2019 |
| US RE47,377 | In force Feb 2028 | Feb 2028 |
| US RE47,646 | Lapsed on the fee record Jan 2022 | Jan 2022 |
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 |
|---|---|---|---|
| Jun 8, 2007 Reel 19398, frame 831 | Rice, Mark W.; Gisel, Thomas J.; Hestad, Hugh D.; Kroll, Mark J. | Zimmer Spine, Inc. | Assignment of Assignor's Interest |
| Feb 18, 2022 Reel 59232, frame 356 | Zimmer Spine, Inc. | Zimmer Biomet Spine, Inc. | Merger |
| Mar 2, 2022 Reel 59293, frame 213 | Biomet 3I, LLC; Ebi, LLC; Zimmer Biomet Spine, Inc.; Zimmer Dental Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Apr 2, 2024 Reel 66973, frame 833 | Jpmorgan Chase Bank, N.a. | Ebi, LLC; Zimmer Biomet Spine, LLC (F/K/A Zimmer Biomet Spine, Inc.) | Release of Security Interest |
| Apr 2, 2024 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Ebi, LLC | Release of Security Interest |
| Apr 2, 2024 reel/frame not recorded | Jpmorgan Chase Bank, N.a. | Zimmer Biomet Spine, LLC (F/K/A Zimmer Biomet Spine, Inc.) | Release of Security Interest |
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 1027 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
136
later US patents cite this one
That is top 5% of utility patents granted in 2011 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.