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US

Devices and Methods for Tissue Modification

US 8,221,397 In force
OverviewFamilyAssignmentsSources & methods

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 Nov 23, 2026 · High confidence

Filed Apr 22, 2009 as application 12/428,369 · Granted Jul 17, 2012
Base term plus 404 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2005 2026
Clock starts
Oct 15, 2005
Term ends
Nov 23, 2026
Granted
Jul 17, 2012
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
404
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,553,307, to Nov 23, 2026. The term already ends on or before that date, so the cap shortened nothing.
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.
65
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 404 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Oct 15, 2005, when application 11/251,165, the earliest non-provisional in its chain, was filed (this one was filed Apr 22, 2009)Oct 15, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+404 days, USPTO patent term adjustment recordNov 23, 2026High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,553,307)resolves to Nov 23, 2026, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderNov 23, 2026High confidence

This family

US 7,918,849In force
Oct 2029
Oct 2029
US 8,192,435Lapsed on the fee record
Jun 2024
Jun 2024
US 7,553,307In force
Feb 2027
Feb 2027
US 7,887,538In force
Jan 2027
Jan 2027
US 7,938,830Lapsed on the fee record
May 2023
May 2023
US 8,430,881In force
Jun 2027
Jun 2027
US 8,048,080In force
Dec 2027
Dec 2027
US 7,578,819Term 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.
RecordedAssignorAssigneeConveyance
Aug 28, 2009
Reel 23166, frame 82
Bleich, Jeffery L.; Hlavka, Edwin J.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, LLCAssignment 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 AgentSecurity Interest
May 4, 2016
Reel 38606, frame 520
Amendia, Inc.Cortland Capital Market Services LLC, as AgentSecurity Interest
Oct 18, 2017
Reel 44343, frame 94
Quandary Medical LLCMis IP Holdings LLCAssignment 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 LLCSchell, JeffreySecurity 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, LPSecurity Interest
Jun 3, 2024
Reel 67605, frame 599
Antares Capital LP, as Administrative AgentSpinal Elements, Inc. (F.K.A. Amendia, Inc.)Release of Security Interest
Jun 3, 2024
Reel 67605, frame 676
Cortland Capital Market Services LLC, as AgentSpinal 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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