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Systems and Methods for Analyzing Casing Bonding in a Well Using Radial Sensing

US 11,959,377 In force
OverviewAssignmentsSources & methods

Also listed on Pipelines 2 Data (P2D) Limited, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Oct 28, 2041 · High confidence

Filed Oct 26, 2020 as application 17/080,216 · Granted Apr 16, 2024
Base term plus 367 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2020 2041
Clock starts
Oct 26, 2020
Term ends
Oct 28, 2041
Granted
Apr 16, 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
367
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.

This patent's term runs 367 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 26, 2020, when this application, 17/080,216, was filedOct 26, 2040High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+367 days, USPTO patent term adjustment recordOct 28, 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 orderOct 28, 2041High confidence

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
Oct 27, 2020
Reel 54178, frame 649
Steel, Geoff; Walsh, Mark; Mayo, Stephen JohnConocoPhillips Company; Pipelines 2 Data (P2D) LimitedAssignment of Assignor's Interest
Oct 27, 2020
reel/frame not recorded
Mayo, Stephen John; Walsh, Mark; Steel, GeoffConocoPhillips CompanyAssignment of Assignor's Interest
Oct 27, 2020
reel/frame not recorded
Mayo, Stephen John; Walsh, Mark; Steel, GeoffPipelines 2 Data (P2D) LimitedAssignment of Assignor's Interest
Apr 14, 2026
Reel 74362, frame 808
Pipelines 2 Data (P2D) LimitedCASE360 LimitedAssignment 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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