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Method and Apparatus for Transmitting Signals, and Method and Apparatus for Receiving the Signals

US 8,446,812 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Nov 21, 2025 · High confidence

Filed Feb 2, 2011 as application 13/019,493 · Granted May 21, 2013
Base term plus 146 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Nov 21, 2025
2005 2026
Clock starts
Jun 28, 2005
Term ended
Nov 21, 2025
Granted
May 21, 2013
base term patent term adjustment 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
146
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,054,739, to Nov 21, 2025. The term already ends on or before that date, so the cap shortened nothing.
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.
2
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 146 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jun 28, 2005, when application 11/167,577, the earliest non-provisional in its chain, was filed (this one was filed Feb 2, 2011)Jun 28, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+146 days, USPTO patent term adjustment recordNov 21, 2025High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,054,739)resolves to Nov 21, 2025, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderNov 21, 2025High confidence

This family

US 8,054,739In force
Jan 2027
Jan 2027
US 8,446,812this patent
Nov 2025
Nov 2025
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 30, 2011
Reel 26532, frame 35
Sanyo IT Solutions Co., Ltd.Sanyo Electric Co., Ltd.Assignment of Assignor's Interest
Jun 30, 2011
Reel 26533, frame 775
NTT Data Sanyo System CorporationSanyo IT Solutions Co., Ltd.Change of Name
Feb 23, 2012
Reel 27754, frame 754
Sanyo Electric Co., Ltd.Hera Wireless S.A.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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