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Linearly Expanding Spine Cage for Enhanced Spinal Fusion

US 7,722,674 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed May 25, 2022 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Filed Aug 12, 2005 as application 11/202,725 · Granted May 25, 2010
Base term, 20 years from filing, plus 279 days of patent term adjustment (USPTO delay)
Today
Lapsed May 25, 2022
2005 2026
Clock starts
Aug 12, 2005
No longer in force
May 25, 2022
Granted
May 25, 2010
Term would have run to
May 18, 2026
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
279
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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to May 18, 2026: its 20-year base term plus 279 days of term adjustment for prosecution delay. 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 Aug 12, 2005, when this application, 11/202,725, was filedAug 12, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+279 days, USPTO patent term adjustment recordMay 18, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed May 25, 2022High confidence
Computed term endThe steps above, in orderMay 25, 2022High confidence

This family

US 7,722,674this patent
May 2022
May 2022
US 7,819,921In force
Jan 2027
Jan 2027
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
Oct 15, 2007
Reel 19964, frame 649
Grotz, R. ThomasInnvotec Surgical, Inc.Assignment of Assignor's Interest
Jul 14, 2010
Reel 24686, frame 21
Innvotec Surgical, Inc.Coalign Innovations, Inc.Change of Name
May 19, 2015
Reel 35667, frame 165
Coalign Innovations, Inc.Howmedica Osteonics Corp.Merger

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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