Lapsed Jan 21, 2022 on the fee record · Low confidence
20-year base term ends Apr 19, 2027
Second maintenance fee unpaid; grace period ended.
Reissue of US 8,632,572, which was surrendered when this reissue was granted; its term and maintenance fees continue here.
Held by Zimmer Biomet Spine, Inc.
Filed Jun 12, 2017 as application 15/619,948 · Granted Oct 15, 2019
Base term, 20 years from filing, plus 314 days of patent term adjustment (USPTO delay)
Today
Lapsed Jan 21, 2022
2007
2028
Clock starts
Apr 19, 2007
Apr 19, 2007
No longer in force
Jan 21, 2022
Jan 21, 2022
Granted
Oct 15, 2019
Oct 15, 2019
Term would have run to
Feb 27, 2028
Feb 27, 2028
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
314
Days of term adjustment
Read from the original patent's USPTO patent term adjustment record, which governs a reissue. Not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from the original patent's grant (Jan 21, 2014). 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 27, 2028: its 20-year base term plus 314 days of term adjustment for prosecution delay. Confidence: Low. 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 application 11/737,151, the earliest non-provisional in its chain, was filed (this one was filed Jun 12, 2017) | Apr 19, 2027 | High confidence |
| Continuity chain | A reissue: its term follows the original patent's, with the original's term adjustment | follows the original patent | Medium confidence |
| Patent term adjustment | +314 days, the original patent's USPTO patent term adjustment record, which governs a reissue (35 U.S.C. 251). This reissue's own record carries none | Feb 27, 2028 | Medium confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Jan 21, 2022 | High confidence |
| Computed term end | The steps above, in order | Jan 21, 2022 | Low confidence |
This family
| US 7,922,725 | Lapsed on the fee record 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 | this patent 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 |
|---|---|---|---|
| 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 314 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2019 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.