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Nanoporous Separators for Batteries and Related Manufacturing Methods

US 10,381,623 In force
OverviewFamilyAssignmentsSources & methods

Term ends Apr 15, 2036 · High confidence

Filed Jul 11, 2016 as application 15/207,370 · Granted Aug 13, 2019
Base term, 20 years from filing
Today
20 years from filing
2016 2036
Clock starts
Apr 15, 2016
Term ends
Apr 15, 2036
Granted
Aug 13, 2019
base term 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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
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.
32
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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is paid so far. 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 Apr 15, 2016, when application 15/130,660, the earliest non-provisional in its chain, was filed (this one was filed Jul 11, 2016)Apr 15, 2036High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderApr 15, 2036High confidence

This family

US 8,883,354In force
Aug 2029
Aug 2029
Application PCT/US2011/001274PCT application
no patent term
no patent term
Application 13/744,702Abandoned
not computed
not computed
US 9,871,239In force
Jul 2028
Jul 2028
Application 15/130,660Abandoned
not computed
not computed
Application PCT/US2016/027910PCT application
no patent term
no patent term
Application PCT/US2016/041798PCT application
no patent term
no patent term
US 10,381,623this patent
Apr 2036
Apr 2036
8 of 32 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
Oct 2, 2020
Reel 53973, frame 547
Carlson, Steven A.; Sloan, Benjamin; Avison, David W.Optodot CorporationAssignment of Assignor's Interest
Oct 18, 2021
Reel 57840, frame 804
Optodot CorporationUnited States Department of EnergyConfirmatory License
May 24, 2022
Reel 60000, frame 89
Optodot CorporationLG Energy Solution, Ltd.Nunc Pro Tunc Assignment

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