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RFID Network Control and Redundancy

US 8,736,423 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed May 27, 2022 on the fee record · Medium confidence

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 8,138,891), so the cap could be lower.

Second maintenance fee unpaid; grace period ended.

Filed Jan 27, 2012 as application 13/359,628 · Granted May 27, 2014
Base term, 20 years from filing, plus 245 days of patent term adjustment (USPTO delay)
Today
Lapsed May 27, 2022
2006 2026
Clock starts
Mar 7, 2006
No longer in force
May 27, 2022
Granted
May 27, 2014
Term would have run to
Nov 7, 2026
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
245
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 8,138,891, US 8,497,762, to Nov 7, 2026. The term already ends on or before that date, so the cap shortened nothing.
1 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.
4
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Nov 7, 2026: its 20-year base term plus 245 days of term adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Mar 7, 2006, when application 11/370,530, the earliest non-provisional in its chain, was filed (this one was filed Jan 27, 2012)Mar 7, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+245 days, USPTO patent term adjustment recordNov 7, 2026High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,138,891, US 8,497,762)resolves to Nov 7, 2026, no earlier than this term, so no changeMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed May 27, 2022High confidence
Computed term endThe steps above, in orderMay 27, 2022Medium confidence

This family

US 8,497,762In force
Oct 2031
Oct 2031
Application PCT/US2007/005843PCT application
no patent term
no patent term
US 8,138,891In force
no later than Dec 2026
no later than Dec 2026
US 8,736,423this patent
May 2022
May 2022
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
Feb 28, 2013
Reel 29896, frame 965
Sensormatic Electronics, LLCADT Services GmbHAssignment of Assignor's Interest
Apr 25, 2013
Reel 30289, frame 441
ADT Services GmbHTyco Fire & Security GmbHMerger
Oct 2, 2018
Reel 47182, frame 674
Tyco Fire & Security GmbHSensormatic Electronics, LLCAssignment of Assignor's Interest
Oct 3, 2018
Reel 47188, frame 715
Tyco Fire & Security GmbHSensormatic Electronics, LLCAssignment 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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