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US

Compositions and Methods for Paraffin Liquefaction and Enhanced Oil Recovery in Oil Wells and Associated Equipment

US 12,173,230 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Nov 11, 2024 (U.S. Bank Trust Company, National Association).

Term ends Apr 30, 2039 · High confidence

Filed Jan 22, 2024 as application 18/418,547 · Granted Dec 24, 2024
Base term, 20 years from filing
Today
20 years from filing
2019 2039
Clock starts
Apr 30, 2019
Term ends
Apr 30, 2039
Granted
Dec 24, 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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,434,415, to Apr 30, 2039. The term already ends on or before that date, so the cap shortened nothing.
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.
5
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Apr 30, 2019, when application PCT/US2019/029870, the earliest non-provisional in its chain, was filed (this one was filed Jan 22, 2024)Apr 30, 2039High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 11,434,415)resolves to Apr 30, 2039, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderApr 30, 2039High confidence

This family

Application PCT/US2019/029870PCT application
no patent term
no patent term
US 11,434,415In force
Apr 2039
Apr 2039
US 11,891,567In force
Mar 2039
Mar 2039
US 12,173,230this patent
Apr 2039
Apr 2039
Application 19/000,993Pending
not computed
not computed
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 9, 2024
Reel 66426, frame 545
Farmer, Sean; Alibek, Ken; Dixon, Tyler; Karathur, Karthik N.Locus Oil IP Company, LLCAssignment of Assignor's Interest
Feb 9, 2024
Reel 66426, frame 680
Locus Oil IP Company, LLCLocus Solutions Ipco, LLCAssignment of Assignor's Interest
Nov 11, 2024
Reel 69333, frame 911
Locus Solutions Ipco, LLCU.S. Bank Trust Company, National Association, as Collateral AgentSecurity 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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