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Low Level Storage Protocols, Systems and Methods

US 8,694,640 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Jun 17, 2023 · High confidence

USPTO later recorded it as expired for non-payment on May 11, 2026.

Filed Feb 11, 2011 as application 13/026,093 · Granted Apr 8, 2014
Base term plus 183 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Jun 17, 2023
2002 2026
Clock starts
Dec 16, 2002
Term ended
Jun 17, 2023
Granted
Apr 8, 2014
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
183
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
9
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 183 days past its 20-year base term on prosecution delay. 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 Dec 16, 2002, when application PCT/US2002/040205, the earliest non-provisional in its chain, was filed (this one was filed Feb 11, 2011)Dec 16, 2022High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+183 days, USPTO patent term adjustment recordJun 17, 2023High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 2 maintenance fees paidterm endedHigh confidence
USPTO status recordRecorded as expired for non-payment on May 11, 2026, after the term endedno changeHigh confidence
Computed term endThe steps above, in orderJun 17, 2023High confidence

This family

US 7,643,476Term ended
no later than Jan 2026
no later than Jan 2026
US 7,602,773Term ended
Nov 2026
Nov 2026
US 7,698,526Term ended
Apr 2026
Apr 2026
US 7,688,814Term ended
Oct 2025
Oct 2025
US 7,742,473Term ended
Nov 2024
Nov 2024
US 7,649,880Term ended
Feb 2025
Feb 2025
US 7,916,727Term ended
May 2026
May 2026
US 8,694,640this patent
Jun 2023
Jun 2023
8 of 9 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
Feb 16, 2011
Reel 25820, frame 879
Zetera CorporationRateze Remote MGMT. L.L.C.Assignment of Assignor's Interest
Apr 20, 2020
Reel 52437, frame 635
Rateze Remote MGMT. L.L.C.Intellectual Ventures I LLCAssignment of Assignor's Interest
Aug 24, 2021
Reel 57274, frame 141
Intellectual Ventures I LLCIntellectual Ventures Assets 177 LLCAssignment of Assignor's Interest
Jan 4, 2022
Reel 58537, frame 356
Intellectual Ventures Assets 177 LLCServstor Technologies, 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.

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