The Patent Finder
US

Posterior Total Joint Replacement

US 11,918,479 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 25, 2029 · High confidence

Held by 3SPINE, Inc.
Filed Apr 1, 2020 as application 16/836,915 · Granted Mar 5, 2024
Base term plus 858 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2029
Clock starts
Jun 20, 2007
Term ends
Oct 25, 2029
Granted
Mar 5, 2024
base term patent term adjustment 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
858
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
17
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 858 days past its 20-year base term on prosecution delay. 0 of 1 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jun 20, 2007, when application 11/757,084, the earliest non-provisional in its chain, was filed (this one was filed Apr 1, 2020)Jun 20, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+858 days, USPTO patent term adjustment recordOct 25, 2029High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 1 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 25, 2029High confidence

This family

Application 11/757,084Abandoned
not computed
not computed
US 8,864,832In force
Jun 2032
Jun 2032
Application PCT/US2008/065504PCT application
no patent term
no patent term
US 9,770,338In force
Apr 2028
Apr 2028
US 10,631,995In force
Jun 2027
Jun 2027
US 10,821,003In force
Jun 2027
Jun 2027
Application PCT/US2019/060800PCT application
no patent term
no patent term
US 11,918,479this patent
Oct 2029
Oct 2029
8 of 17 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
Sep 22, 2021
Reel 57567, frame 331
Carls, Thomas; Lange, Eric; Braddock, Danny, JR; Humphreys, Steven Craig; Hodges, Scott D.; Fessler, Richard G.; Zhang, JeffreyWarsaw Orthopedic, Inc.Assignment of Assignor's Interest
Sep 23, 2021
Reel 57577, frame 512
Warsaw Orthopedic, Inc. / Medtronic, Inc.HH Spinal LLCAssignment of Assignor's Interest
Sep 16, 2022
Reel 61120, frame 53
HH Spinal LLCInternational Surgical SeczAssignment of Assignor's Interest
Sep 22, 2022
Reel 61509, frame 1
International Surgical Secz3SPINE SezcChange of Name
Oct 26, 2022
Reel 61779, frame 547
3SPINE Sezc3SPINE, Inc.Certificate of Domestication with Name Change

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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited