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).

Term ends May 16, 2028 · High confidence

Computed 20-year base term

Held by Spinal Elements, Inc.

Filed Aug 29, 2006 as application 11/468,247 · Granted Dec 28, 2010

Base term plus 626 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends May 16, 2028

2006 2028

Clock starts
Aug 29, 2006

Term ends
May 16, 2028

Granted
Dec 28, 2010

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

626

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

3 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.

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 626 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 29, 2006, when this application, 11/468,247, was filed	Aug 29, 2026	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+626 days, USPTO patent term adjustment record	May 16, 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	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	May 16, 2028	High confidence

This family

US 7,918,849	In force Oct 2029	Oct 2029
US 8,192,435	Lapsed on the fee record Jun 2024	Jun 2024
US 7,553,307	In force Feb 2027	Feb 2027
US 7,887,538	In force Jan 2027	Jan 2027
US 7,938,830	Lapsed on the fee record May 2023	May 2023
US 8,430,881	In force Jun 2027	Jun 2027
US 8,048,080	In force Dec 2027	Dec 2027
US 7,578,819	Term ended Oct 2025	Oct 2025

8 of 65 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
Sep 6, 2006 Reel 18212, frame 9	Schmitz, Gregory; Bleam, Jefferey; Leguidleguid, Roy; Bleich, Jeffery L.	Baxano, Inc.	Assignment of Assignor's Interest
Nov 18, 2013 Reel 31666, frame 526	Baxano, Inc.	Baxano Surgical, Inc.	Change of Name
Feb 11, 2015 Reel 34947, frame 732	Baxano Surgical, Inc.	Exworks Capital Fund I, L.P.	Assignment of Assignor's Interest
Feb 11, 2015 Reel 34954, frame 526	Baxano Surgical, Inc.	Quandary Medical, LLC	Assignment of Assignor's Interest
May 7, 2015 Reel 35613, frame 952	Exworks Capital Fund I, L.P.	Amendia, Inc.	Assignment of Assignor's Interest
May 2, 2016 Reel 38587, frame 753	Amendia, Inc.	Antares Capital LP, as Agent	Security Interest
May 4, 2016 Reel 38606, frame 520	Amendia, Inc.	Cortland Capital Market Services LLC, as Agent	Security Interest
Oct 18, 2017 Reel 44343, frame 94	Quandary Medical LLC	Mis IP Holdings LLC	Assignment of Assignor's Interest
Aug 22, 2019 Reel 51364, frame 541	Amendia, Inc.	Amendia, Inc.	Assignment Correction Under Mpep 323.01(C) at Reel 034954 Frame 0526.
Sep 18, 2019 Reel 51797, frame 221	Quandary Medical LLC	Schell, Jeffrey	Security Interest
Jan 22, 2020 Reel 51665, frame 979	Spinal Elements, Inc.; Amendia, Inc.	Spinal Elements, Inc.	Merger and 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 599	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

May 2028

Term ends May 16, 2028. No further fees fall due before then

Note

The 626 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

1,590

later US patents cite this one

That is top 1% of utility patents granted in 2010 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.

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