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Peroxide Crosslinked Ethylene Polymer Pressure Pipe and a Method for the Preparation Thereof

US 8,968,851 In force
OverviewFamilyAssignmentsSources & methods

Term ends Aug 5, 2028 · High confidence

Filed Aug 29, 2007 as application 10/592,633 · Granted Mar 3, 2015
Base term plus 1246 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2005 2028
Clock starts
Mar 8, 2005
Term ends
Aug 5, 2028
Granted
Mar 3, 2015
base term patent term adjustment 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
1,246
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
2
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 1246 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Mar 8, 2005, when application PCT/EP2005/002591, the earliest non-provisional in its chain, was filed (this one was filed Aug 29, 2007)Mar 8, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1246 days, USPTO patent term adjustment recordAug 5, 2028High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 5, 2028High confidence

This family

US 8,968,851this patent
Aug 2028
Aug 2028
1 of 2 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
Aug 29, 2007
Reel 19768, frame 851
Walter, Philipp; Pakkanen, Annelie; Oderkerk, Jeroen; Palmlof, Magnus; Hojer, Lars; Gustafsson, Bill; Dreng, ToreBorealis Technology OyAssignment of Assignor's Interest
Sep 14, 2007
Reel 19832, frame 337
Walter, Philipp; Pakkanen, Anneli; Oderkerk, Jeroen; Palmlof, Magnus; Hojer, Lars; Gustafsson, Bill; Dreng, ToreBorealis Technology OyCorrective Assignment to Correct the Spelling of the First Name of the Second Assignor's Previously Recorded on Reel 019768 Frame 0851
Feb 23, 2022
Reel 59219, frame 949
Borealis AGBorealis AGChange of Address

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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