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US

Geophysical Surveying

US 9,383,475 In force
OverviewAssignmentsSources & methods

Also listed on Rock Solid Images, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Feb 11, 2035 · High confidence

Filed Jun 9, 2008 as application 12/135,729 · Granted Jul 5, 2016
Base term plus 2438 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2008 2035
Clock starts
Jun 9, 2008
Term ends
Feb 11, 2035
Granted
Jul 5, 2016
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
2,438
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 2438 days past its 20-year base term on prosecution delay. 2 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 Jun 9, 2008, when this application, 12/135,729, was filedJun 9, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+2438 days, USPTO patent term adjustment recordFeb 11, 2035High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 11, 2035High 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
Sep 18, 2008
Reel 21550, frame 609
Macgregor, LucyOhm LimitedAssignment of Assignor's Interest
Sep 18, 2008
Reel 21550, frame 891
Harris, PeterRock Solid Images A/SAssignment of Assignor's Interest
Sep 26, 2008
Reel 21593, frame 359
Rock Solid Images A/SOhm LimitedAssignment of Assignor's Interest
Mar 25, 2011
Reel 26024, frame 241
Ohm LimitedOffshore Hydrocarbon Mapping PLCAssignment of Assignor's Interest
Sep 23, 2011
Reel 26956, frame 506
Offshore Hydrocarbon Mapping PLCRock Solid Images PLCChange of Name
Apr 27, 2015
Reel 35497, frame 896
Rock Solid Images PLCRock Solid Images, Inc.Assignment of Assignor's Interest
Jun 4, 2015
Reel 35783, frame 345
Rock Solid Images PLCRock Solid Images, Inc.Assignment of Assignor's Interest
Apr 8, 2020
Reel 52349, frame 588
SLLP 206 LimitedPGS Geophysical AsAssignment of Assignor's Interest
Apr 8, 2020
Reel 52351, frame 174
Rock Solid Images, Inc.; Rock Solid Images US Group, Inc.SLLP 206 LimitedDeed of Confirmation and Clarification

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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