The Patent Finder
US

Optical Waveguide Sheath

US 7,510,524 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Apr 3, 2026 · High confidence

Filed Apr 3, 2006 as application 11/397,446 · Granted Mar 31, 2009
Base term, 20 years from filing
Today
20 years from filing
Term ended Apr 3, 2026
2006 2026
Clock starts
Apr 3, 2006
Term ended
Apr 3, 2026
Granted
Mar 31, 2009
base term 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
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.
15
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 were paid, so no fee lapse ended it. 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 Apr 3, 2006, when this application, 11/397,446, was filedApr 3, 2026High 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 paidterm endedHigh confidence
Computed term endThe steps above, in orderApr 3, 2026High confidence

This family

US 7,510,524this patent
Apr 2026
Apr 2026
Application PCT/US2006/013029PCT application
no patent term
no patent term
US 7,901,353In force
Dec 2028
Dec 2028
US 9,005,115In force
May 2029
May 2029
US 8,162,824Lapsed on the fee record
Apr 2024
Apr 2024
US 8,708,896Lapsed on the fee record
Apr 2026
Apr 2026
US 9,072,455Lapsed on the fee record
Jul 2023
Jul 2023
US 9,504,373Term ended
Jul 2026
Jul 2026
8 of 15 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 4, 2006
Reel 18138, frame 62
Vayser, Alex; Trauner, Kenneth; Gasson, Jon; Grey, TomSpotlight Surgical, Inc.Assignment of Assignor's Interest
Dec 3, 2008
Reel 21923, frame 103
Spotlight Surgical, Inc.Invuity, Inc.Change of Name
Feb 28, 2014
Reel 32372, frame 240
Invuity, Inc.Healthcare Royalty Partners II, L.P.Security Agreement
Jun 3, 2015
Reel 35819, frame 943
Invuity, Inc.Invuity, Inc.Merger
Mar 17, 2017
Reel 42035, frame 801
Healthcare Royalty Partners II, L.P.Invuity, Inc.Release of Security Interest
Mar 21, 2017
Reel 42052, frame 834
Invuity, Inc.Midcap Financial Trust, As AgentSecurity Interest (Revolving Loan)
Mar 21, 2017
Reel 42053, frame 284
Invuity, Inc.Midcap Financial Trust, As AgentSecurity Interest (TERM Loan)
Oct 23, 2018
Reel 47719, frame 34
Midcap Financial Trust, As AgentInvuity, 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.

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