Collateral for a security interest recorded Jun 27, 2026 (Wingspire Capital LLC).
Surrendered on reissue May 7, 2019 · Low confidence
20-year base term ends Apr 19, 2027
Surrendered on reissue May 7, 2019 · its term and maintenance fees continue in US RE47,377 and US RE47,646.
Held by Highridge Medical, LLC
Filed Mar 15, 2011 as application 13/048,447 · Granted Jan 21, 2014
Base term, 20 years from filing, plus 314 days of patent term adjustment (USPTO delay)
Today
Surrendered May 7, 2019
2007
2028
Clock starts
Apr 19, 2007
Apr 19, 2007
No longer in force
May 7, 2019
May 7, 2019
Granted
Jan 21, 2014
Jan 21, 2014
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 USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Fees paid on this patent before its reissue. Those after fall due on the reissue, which carries the term on.
4
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 runs 314 days past its 20-year base term on 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 Mar 15, 2011); a parent in its chain could not be resolved (the next row) | Apr 19, 2027 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +314 days, USPTO patent term adjustment record | Feb 27, 2028 | 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 | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | no change | Low confidence |
| Reissue | US RE47,377 and US RE47,646 issued May 7, 2019, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered May 7, 2019 | High confidence |
| Surrendered on reissue | The steps above, in order | May 7, 2019 | Low confidence |
This family
| US 7,922,725 | Lapsed on the fee record Apr 2023 | Apr 2023 |
| US 8,632,572 | this patent 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 |
|---|---|---|---|
| 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 |
| Mar 22, 2024 Reel 66877, frame 292 | Rice, Mark W.; Gisel, Thomas J.; Hestad, Hugh D.; Kroll, Mark J. | Zimmer Spine, Inc. | Assignment of Assignor's Interest |
| Mar 25, 2024 Reel 66894, frame 402 | Zimmer Spine, Inc. | Zimmer Biomet Spine, Inc. | Merger |
| Apr 1, 2024 Reel 66970, frame 806 | Zimmer Biomet Spine, LLC; Ebi, LLC | Cerberus Business Finance Agency, LLC | Grant of a Security Interest -- Patents |
| 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 |
| Dec 24, 2024 Reel 69772, frame 121 | Zimmer Biomet Spine, Inc. | Zimmer Biomet Spine, LLC | Change of Name |
| Dec 24, 2024 Reel 69772, frame 248 | Zimmer Biomet Spine, LLC | Highridge Medical, LLC | Change of Name |
| Jun 27, 2026 Reel 76224, frame 379 | Zeb Intermediate, LLC; Zeb Buyer, LLC,; Highridge Medical, LLC, | Wingspire Capital LLC, as Administrative Agent | 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.
What's changing
Note
The 314 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 25% 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.