Term ends Mar 3, 2029 · High confidence
20-year base term ends Nov 13, 2028
Held by GHSP Control Devices, Inc.
Filed Nov 13, 2008 as application 12/270,598 · Granted Mar 6, 2012
Base term plus 110 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Nov 13, 2008
Nov 13, 2008
Term ends
Mar 3, 2029
Mar 3, 2029
Granted
Mar 6, 2012
Mar 6, 2012
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
110
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 110 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 Nov 13, 2008, when this application, 12/270,598, was filed | Nov 13, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +110 days, USPTO patent term adjustment record | Mar 3, 2029 | 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 | Mar 3, 2029 | High confidence |
This family
| US 8,128,265 | this patent Mar 2029 | Mar 2029 |
| US 8,333,495 | In force Nov 2028 | Nov 2028 |
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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Feb 5, 2009 Reel 22212, frame 403 | Shamitz, Robert; Harrop, William | Stoneridge Control Devices, Inc. | Assignment of Assignor's Interest |
| Oct 7, 2010 Reel 25105, frame 78 | Stoneridge Control Devices, Inc. | The Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Security Agreement |
| Dec 5, 2011 Reel 27328, frame 797 | Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc. | PNC Bank, National Association, as Agent | Amended and Restated Patent Security Agreement |
| Oct 15, 2014 Reel 33998, frame 222 | The Bank of New York Mellon Trust Company, N.A. | Stoneridge Control Devices, Inc. | Release of Security Interest |
| Nov 14, 2014 Reel 34242, frame 176 | Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc. | Pnc Bank, National Association | Security Interest |
| Jun 12, 2019 Reel 49451, frame 357 | Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.; Stoneridge Aftermarket, Inc.; Orlaco Inc.; SRI Holdings US LLC; SRI Delaware Holdings LLC | Pnc Bank, National Association | Security Interest |
| Nov 2, 2023 Reel 65447, frame 664 | Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.; Stoneridge Fleet Solutions, Inc.; SRI Holdings US LLC; SRI Delaware Holdings LLC | PNC Bank, National Association, as Agent | Security Interest |
| Oct 16, 2024 Reel 69175, frame 944 | PNC Bank, National Association, as Agent | Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc. | Release of Security Interest |
| Oct 16, 2024 reel/frame not recorded | PNC Bank, National Association, as Agent | Stoneridge, Inc. | Release of Security Interest |
| Oct 16, 2024 reel/frame not recorded | PNC Bank, National Association, as Agent | Stoneridge Electronics, Inc. | Release of Security Interest |
| Oct 16, 2024 reel/frame not recorded | PNC Bank, National Association, as Agent | Stoneridge Control Devices, Inc. | Release of Security Interest |
| Feb 6, 2026 Reel 74714, frame 699 | PNC Bank, National Association, as Agent | Stoneridge Control Devices, Inc. | Release of Security Interest |
| Aug 6, 2026 Reel 76114, frame 744 | Stoneridge Control Devices, Inc. | GHSP Control Devices, Inc. | Change of Name |
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
Mar 2029
Term ends Mar 3, 2029. No further fees fall due before then
Note
The 110 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
20
later US patents cite this one
That is above the median of utility patents granted in 2012 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.