The Patent Finder
US

Channel Bandwidth Estimation on Hybrid Technology Wireless Links

US 8,937,877 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jan 30, 2030 · High confidence

Filed Jan 6, 2012 as application 13/345,550 · Granted Jan 20, 2015
Base term plus 106 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2009 2030
Clock starts
Oct 16, 2009
Term ends
Jan 30, 2030
Granted
Jan 20, 2015
base term patent term adjustment 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
106
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
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 106 days past its 20-year base term on 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 Oct 16, 2009, when application 12/581,018, the earliest non-provisional in its chain, was filed (this one was filed Jan 6, 2012)Oct 16, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+106 days, USPTO patent term adjustment recordJan 30, 2030High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJan 30, 2030High confidence

This family

US 8,116,225In force
Aug 2030
Aug 2030
US 8,937,877this patent
Jan 2030
Jan 2030
US 9,674,729In force
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
Mar 14, 2013
Reel 30001, frame 894
Venturi Wireless, Inc.Venturi IP LLCAssignment of Assignor's Interest
Mar 14, 2013
Reel 30004, frame 1
Venturi IP LLCFortress Credit Corp.Security Agreement
Aug 20, 2014
Reel 33577, frame 71
Ketheesan, Kanapathipillai; Choi, DavidVenturi Wireless, Inc.Assignment of Assignor's Interest
Nov 17, 2015
Reel 37058, frame 411
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