Also listed on Rock Solid Images, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 14, 2028 · High confidence
20-year base term ends Dec 28, 2026
Held by PGS Geophysical As
Filed Dec 28, 2006 as application 11/646,935 · Granted Nov 22, 2011
Base term plus 626 days of patent term adjustment (USPTO delay)
Today
2006
2028
Clock starts
Dec 28, 2006
Dec 28, 2006
Term ends
Sep 14, 2028
Sep 14, 2028
Granted
Nov 22, 2011
Nov 22, 2011
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
626
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.
This patent's term runs 626 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 28, 2006, when this application, 11/646,935, was filed | Dec 28, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +626 days, USPTO patent term adjustment record | Sep 14, 2028 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 14, 2028 | High 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Dec 28, 2006 Reel 18750, frame 785 | Harris, Peter | Rdsp I, L.p. | Assignment of Assignor's Interest |
| Mar 26, 2008 Reel 20701, frame 540 | Macgregor, Lucy | Ohm Limited | Assignment of Assignor's Interest |
| Mar 26, 2008 Reel 20701, frame 471 | Harris, Peter | Rock Solid Images A/S | Corrective Assignment to Correct the Name of Assignee on Assignment Document and Recordation Cover Sheet Previously Recorded on Reel 018750 Frame 0785. Assignor(S) Hereby Confirms the RDSP I, L.P. Should Be Rock Solid Images A/S. |
| Mar 28, 2008 Reel 20717, frame 832 | Ohm Limited | Rock Solid Images, Inc. | Assignment of Assignor's Interest |
| Mar 28, 2008 Reel 20717, frame 852 | Offshore Hydrocarbon Mapping, PLC | Rock Solid Images, Inc. | Assignment of Assignor's Interest |
| Mar 28, 2008 Reel 20717, frame 814 | Rock Solid Images A/S | Rock Solid Images, Inc. | Assignment of Assignor's Interest |
| Apr 8, 2020 Reel 52349, frame 588 | SLLP 206 Limited | PGS Geophysical As | Assignment of Assignor's Interest |
| Apr 8, 2020 Reel 52351, frame 174 | Rock Solid Images, Inc.; Rock Solid Images US Group, Inc. | SLLP 206 Limited | Deed 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Sep 2028
Term ends Sep 14, 2028. No further fees fall due before then
Note
The 626 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is above the median of utility patents granted in 2011 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.