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Lithium Iron Phosphate (LFP) battery recycling

US 12,071,677 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jun 13, 2025 (Alter Domus (US) LLC).

Term ends Aug 2, 2042 · High confidence

Filed Aug 2, 2022 as application 17/879,059 · Granted Aug 27, 2024
Base term, 20 years from filing
Today
20 years from filing
2022 2042
Clock starts
Aug 2, 2022
Term ends
Aug 2, 2042
Granted
Aug 27, 2024
base term 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.
0 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.
3
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. 0 of 3 maintenance fees are 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 Aug 2, 2022, when this application, 17/879,059, was filedAug 2, 2042High 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 events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 2, 2042High confidence

This family

Application 17/519,914Pending
not computed
not computed
US 12,620,643In force
Dec 2044
Dec 2044
US 12,071,677this patent
Aug 2042
Aug 2042
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
Sep 13, 2023
Reel 64885, frame 140
Gratz, Eric; Kim, Kee-chanAscend Elements, Inc.Assignment of Assignor's Interest
May 16, 2025
Reel 71147, frame 634
Ascend Elements, Inc.Avenue Capital Management II, L.P.Security Interest
Jun 13, 2025
Reel 71564, frame 618
Ascend Elements, Inc.Alter Domus (US) LLCIntellectual Property Security Agreement
Dec 12, 2025
Reel 73935, frame 873
Avenue Capital Management II, L.P.Ascend Elements, Inc.Termination and Release of Intellectual Property Security Agreement

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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