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Cannulotome

US 8,647,257 In force (reinstated)
OverviewFamilyAssignmentsSources & methods

Also listed on Spine View, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Sep 20, 2031 · High confidence

Filed Sep 26, 2011 as application 13/245,826 · Granted Feb 11, 2014
Base term, 20 years from filing
Today
20 years from filing
2011 2031
Clock starts
Sep 20, 2011
Term ends
Sep 20, 2031
Granted
Feb 11, 2014
base term fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
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.
5
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 is its 20-year base term, with no adjustment for 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Sep 20, 2011, when application 13/237,866, the earliest non-provisional in its chain, was filed (this one was filed Sep 26, 2011)Sep 20, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn force (reinstated)High confidence
Computed term endThe steps above, in orderSep 20, 2031High confidence

This family

US 9,049,986Term ended
Jun 2026
Jun 2026
US 8,647,257this patent
Sep 2031
Sep 2031
Application 14/177,155Abandoned
not computed
not computed
Application 14/611,081Abandoned
not computed
not computed
Application 14/733,883Abandoned
not computed
not computed
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
Jun 22, 2018
Reel 46413, frame 616
Spine View, Inc.Spine View (ABC) LLCAssignment of Assignor's Interest
Jun 22, 2018
Reel 46413, frame 737
Spine View (ABC) LLCExpanding Innovations, Inc.Assignment of Assignor's Interest
Dec 5, 2022
Reel 61980, frame 594
Jansen, Lex P.; To, John; Davis, John; Kume, Stewart; Twardzik, WendySpine View, Inc.Assignment of Assignor's 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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