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US

High Transparency Electrochromic Polymers

US 11,879,098 In force
OverviewFamilyAssignmentsSources & methods

Term ends Mar 4, 2042 · High confidence

Filed Feb 9, 2022 as application 17/668,300 · Granted Jan 23, 2024
Base term plus 27 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2022 2042
Clock starts
Feb 9, 2022
Term ends
Mar 4, 2042
Granted
Jan 23, 2024
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
27
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,874,578.
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.
22
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 27 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Feb 9, 2022, when this application, 17/668,300, was filedFeb 9, 2042High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+27 days, USPTO patent term adjustment recordMar 8, 2042High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 11,874,578)capped to Mar 4, 2042High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderMar 4, 2042High confidence

This family

Application PCT/US2019/051112PCT application
no patent term
no patent term
US 10,921,673In force
Sep 2039
Sep 2039
US 12,061,403In force
Apr 2042
Apr 2042
Application PCT/US2021/041863PCT application
no patent term
no patent term
Application PCT/US2021/043458PCT application
no patent term
no patent term
Application PCT/US2021/055015PCT application
no patent term
no patent term
US 11,879,098this patent
Mar 2042
Mar 2042
US 11,874,578In force
Mar 2042
Mar 2042
8 of 22 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
Apr 14, 2022
Reel 59598, frame 691
Mei, Jianguo; Pandit, Vaidehi; Wang, ZhiyangAmbilight Inc.Assignment 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.

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