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US

Air Conditioning Systems Based on Membranes

US 12,194,412 In force
OverviewFamilyAssignmentsSources & methods

Term ends Sep 15, 2041 · High confidence

Filed Mar 30, 2022 as application 17/754,326 · Granted Jan 14, 2025
Base term plus 338 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2020 2041
Clock starts
Oct 12, 2020
Term ends
Sep 15, 2041
Granted
Jan 14, 2025
base term patent term adjustment 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
338
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
4
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 338 days past its 20-year base term on 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 Oct 12, 2020, when application PCT/US2020/070655, the earliest non-provisional in its chain, was filed (this one was filed Mar 30, 2022)Oct 12, 2040High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+338 days, USPTO patent term adjustment recordSep 15, 2041High 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 orderSep 15, 2041High confidence

This family

Application 62/913,421Provisional application
no patent term
no patent term
Application 62/935,305Provisional application
no patent term
no patent term
Application PCT/US2020/070655PCT application
no patent term
no patent term
US 12,194,412this patent
Sep 2041
Sep 2041
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
Nov 17, 2023
Reel 65617, frame 157
Kraton Polymers LLCKraton CorporationChange of Name
Nov 21, 2023
Reel 65636, frame 248
Mhetar, Vijay; Blackwell, Richard; Tocchetto, Roger; Barnes, LeeKraton Polymers LLCAssignment of Assignor's Interest
Nov 26, 2023
Reel 65660, frame 747
Kraton CorporationNotark LLCAssignment of Assignor's Interest
Jun 4, 2024
Reel 67608, frame 978
Notark LLCNotark CorporationCertificate of Conversion

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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