Also listed on Spinal Elements, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded May 31, 2024 (Perceptive Credit Holdings IV, LP).
Lapsed Oct 21, 2026 on the fee record · Low confidence
20-year base term ends Mar 12, 2028
Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Spinal Elements, Inc.
Filed Mar 12, 2008 as application 12/047,178 · Granted Oct 21, 2014
Base term, 20 years from filing, plus 1255 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 21, 2026
2008
2031
Clock starts
Mar 12, 2008
Mar 12, 2008
No longer in force
Oct 21, 2026
Oct 21, 2026
Granted
Oct 21, 2014
Oct 21, 2014
Term would have run to
Aug 19, 2031
Aug 19, 2031
base term
patent term adjustment
after the term ends
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
1,255
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.
Its term would have run to Aug 19, 2031: its 20-year base term plus 1255 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 Mar 12, 2008, when this application, 12/047,178, was filed | Mar 12, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1255 days, USPTO patent term adjustment record | Aug 19, 2031 | 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" | lapsed Oct 21, 2026 | Low confidence |
| Computed term end | The steps above, in order | Oct 21, 2026 | Low confidence |
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 |
|---|---|---|---|
| May 27, 2008 Reel 21002, frame 884 | Blain, Jason; Johnson, Dean | Spinal Elements, Inc. | Assignment of Assignor's Interest |
| Oct 5, 2009 Reel 23325, frame 425 | Spinal Elements, Inc. | Comerica Bank | Security Agreement |
| 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 1255 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
88
later US patents cite this one
That is top 10% 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.