The Patent Finder
US

Low Latency Handover Between Wireless Communication Networks Using Different Radio Access Technologies

US 8,027,309 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jul 27, 2030 · High confidence

Filed Nov 19, 2007 as application 11/984,462 · Granted Sep 27, 2011
Base term plus 981 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2030
Clock starts
Nov 19, 2007
Term ends
Jul 27, 2030
Granted
Sep 27, 2011
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
981
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.
29
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 981 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 Nov 19, 2007, when this application, 11/984,462, was filedNov 19, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+981 days, USPTO patent term adjustment recordJul 27, 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 orderJul 27, 2030High confidence

This family

US 6,909,879Lapsed on the fee record
Jun 2017
Jun 2017
US 7,013,145Lapsed on the fee record
Mar 2018
Mar 2018
US 7,489,690Term ended
Oct 2026
Oct 2026
US 8,355,413Lapsed on the fee record
Jan 2021
Jan 2021
US 7,907,578Lapsed on the fee record
Mar 2023
Mar 2023
Application PCT/US2006/023872PCT application
no patent term
no patent term
US 7,984,130Lapsed on the fee record
Jul 2023
Jul 2023
US 8,244,209Lapsed on the fee record
Aug 2024
Aug 2024
8 of 29 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
Nov 19, 2007
Reel 20177, frame 285
Kotecha, Lalit Ratilal; Yang, JinCellco Partnership D/B/A Verizon WirelessAssignment 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