The Patent Finder
US

Propylene Elastomers for Electrical Wire and Cable Compounds

US 7,794,847 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Sep 14, 2018 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Nov 14, 2006 as application 11/599,147 · Granted Sep 14, 2010
Base term, 20 years from filing, plus 807 days of patent term adjustment (USPTO delay)
Today
Lapsed Sep 14, 2018
2006 2029
Clock starts
Nov 14, 2006
No longer in force
Sep 14, 2018
Granted
Sep 14, 2010
Term would have run to
Jan 29, 2029
base term patent term adjustment after the term ends fee events 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
807
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.
89
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 Jan 29, 2029: its 20-year base term plus 807 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 14, 2006, when this application, 11/599,147, was filedNov 14, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+807 days, USPTO patent term adjustment recordJan 29, 2029High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Sep 14, 2018High confidence
Computed term endThe steps above, in orderSep 14, 2018High confidence

This family

Application 60/749,772Provisional application
no patent term
no patent term
Application PCT/US2006/044158PCT application
no patent term
no patent term
US 7,794,847this patent
Sep 2018
Sep 2018
US 9,582,034In force
Nov 2034
Nov 2034
US 9,958,904In force
Nov 2034
Nov 2034
US 10,156,867In force
Nov 2034
Nov 2034
US 10,126,779In force
Nov 2034
Nov 2034
US 10,139,859In force
Jan 2035
Jan 2035
8 of 89 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
Nov 14, 2006
Reel 18609, frame 172
Chasey, Kent Leon; Dharmarajan, Narayanaswami Raja; Ravishankar, Periagaram SrinivasanExxonMobil Chemical Patents 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited