Collateral for a security interest recorded May 31, 2024 (Perceptive Credit Holdings IV, LP).
Term ends Mar 28, 2032 · High confidence
20-year base term ends Feb 24, 2031
Held by Spinal Elements, Inc.
Filed Aug 16, 2011 as application 13/211,052 · Granted Apr 5, 2016
Base term plus 1112 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2011
2032
Clock starts
Feb 24, 2011
Feb 24, 2011
Term ends
Mar 28, 2032
Mar 28, 2032
Granted
Apr 5, 2016
Apr 5, 2016
base term
patent term adjustment
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
1,112
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,740,949.
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.
14
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 1112 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are paid so far. 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 Feb 24, 2011, when application 13/033,791, the earliest non-provisional in its chain, was filed (this one was filed Aug 16, 2011) | Feb 24, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1112 days, USPTO patent term adjustment record | Mar 12, 2034 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,740,949) | capped to Mar 28, 2032 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 28, 2032 | High confidence |
This family
| US 8,740,949 | In force Mar 2032 | Mar 2032 |
| US 9,301,786 | this patent Mar 2032 | Mar 2032 |
| US D724,733 | In force Mar 2029 | Mar 2029 |
| US 9,271,765 | In force Feb 2031 | Feb 2031 |
| US 9,179,943 | In force Feb 2031 | Feb 2031 |
| US D748,262 | In force Jan 2030 | Jan 2030 |
| US D748,793 | In force Feb 2030 | Feb 2030 |
| US 9,808,294 | In force Mar 2031 | Mar 2031 |
8 of 14 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 |
|---|---|---|---|
| Aug 16, 2011 Reel 26759, frame 950 | Blain, Jason | Spinal Elements, Inc. | Assignment of Assignor's Interest |
| May 5, 2015 Reel 35570, frame 411 | Spinal Elements, Inc. (Formerly, Quantum Orthopedics Inc.) | Comerica Bank | Security Interest |
| Apr 13, 2017 Reel 42247, frame 572 | Spinal Elements, Inc. | Antares Capital LP, as Agent | Security Interest |
| Apr 18, 2017 Reel 42369, frame 295 | Spinal Elements, Inc. | Cortland Capital Market Services LLC, as Agent | Security Interest |
| May 26, 2017 Reel 42589, frame 492 | Comerica Bank | Spinal Elements Inc. Formerly Known as Quantum Orthopedics Inc. | Release of Security Interest |
| Apr 10, 2020 Reel 52372, frame 207 | Spinal Elements, Inc. | Amendia, Inc. | Merger |
| Apr 17, 2020 Reel 52919, frame 70 | Amendia, Inc. | Spinal Elements, Inc. | Change of Name |
| May 31, 2024 Reel 67596, frame 295 | Spinal Elements, Inc.; Custom Spine Acquisition, Inc.; Omni Acquisition Inc. | Perceptive Credit Holdings IV, LP | Security Interest |
| Jun 3, 2024 Reel 67605, frame 626 | Antares Capital LP, as Administrative Agent | Spinal Elements, Inc. (F.K.A. Amendia, Inc.) | Release of Security Interest |
| Jun 3, 2024 Reel 67605, frame 676 | Cortland Capital Market Services LLC, as Agent | Spinal Elements, Inc. (F.K.A. Amendia, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Mar 2032
Term ends Mar 28, 2032. Maintenance fees still fall due before then
Note
The 1112 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,740,949.
Citations
87
later US patents cite this one
That is top 5% of utility patents granted in 2016 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.