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Process for the Manufacture of Hydrochlorofluoroolefins

US 8,642,819 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Feb 4, 2022 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Held by Arkema Inc.
Filed May 5, 2011 as application 13/127,817 · Granted Feb 4, 2014
Base term, 20 years from filing, plus 150 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 4, 2022
2009 2030
Clock starts
Nov 12, 2009
No longer in force
Feb 4, 2022
Granted
Feb 4, 2014
Term would have run to
Apr 11, 2030
base term patent term adjustment after the term ends fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
150
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
6
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Apr 11, 2030: its 20-year base term plus 150 days of term adjustment for prosecution delay. 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 Nov 12, 2009, when application PCT/US2009/064145, the earliest non-provisional in its chain, was filed (this one was filed May 5, 2011)Nov 12, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+150 days, USPTO patent term adjustment recordApr 11, 2030High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Feb 4, 2022High confidence
Computed term endThe steps above, in orderFeb 4, 2022High confidence

This family

Application PCT/US2009/064145PCT application
no patent term
no patent term
US 8,642,819this patent
Feb 2022
Feb 2022
US 8,987,534In force
no later than Nov 2029
no later than Nov 2029
US 8,987,535In force
no later than Nov 2029
no later than Nov 2029
Application PCT/US2015/013204PCT application
no patent term
no patent term
Application PCT/US2015/013202PCT application
no patent term
no patent term
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 29, 2011
Reel 26990, frame 600
Elsheikh, Maher Y.; Bonnet, Philippe; Wismer, John A.Arkema 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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