The Patent Finder
US

Channel Bandwidth Estimation on Hybrid Technology Wireless Links

US 9,674,729 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Term ends no later than Oct 18, 2029 · Medium confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Filed Jan 9, 2015 as application 14/594,027 · Granted Jun 6, 2017
Base term plus 2 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2009 2029
Clock starts
Oct 16, 2009
Ends no later than
Oct 18, 2029
Granted
Jun 6, 2017
base term 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
2
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
3
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 2 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 16, 2009, when application 12/581,018, the earliest non-provisional in its chain, was filed (this one was filed Jan 9, 2015)Oct 16, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+2 days, USPTO patent term adjustment recordOct 18, 2029High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Oct 18, 2029Medium confidence

This family

US 8,116,225In force
Aug 2030
Aug 2030
US 8,937,877In force
Jan 2030
Jan 2030
US 9,674,729this patent
no later than Oct 2029
no later than Oct 2029
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
Jan 15, 2015
Reel 34731, frame 871
Ketheesan, Kanapathipillai; Choi, DavidVenturi Wireless, Inc.Assignment of Assignor's Interest
Jan 15, 2015
Reel 34731, frame 878
Venturi Wireless, Inc.Venturi IP LLCAssignment of Assignor's Interest
Feb 17, 2017
Reel 41290, frame 435
Venturi IP LLCVenturi Wireless, 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.

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