Collateral for a security interest recorded Mar 20, 2024 (MS Private Credit Administrative Services LLC).
Term ended Sep 5, 2026 · High confidence
20-year base term ended May 9, 2023
Held by Grass Valley Canada
Filed May 9, 2003 as application 10/434,461 · Granted Sep 1, 2015
Base term plus 1215 days of patent term adjustment (USPTO delay)
Today
Term ended Sep 5, 2026
2003
2026
Clock starts
May 9, 2003
May 9, 2003
Term ended
Sep 5, 2026
Sep 5, 2026
Granted
Sep 1, 2015
Sep 1, 2015
base term
patent term adjustment
after the term ends
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
1,215
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
23
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 1215 days past its 20-year base term on prosecution delay. 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 May 9, 2003, when this application, 10/434,461, was filed | May 9, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1215 days, USPTO patent term adjustment record | Sep 5, 2026 | 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 | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Sep 5, 2026 | High confidence |
This family
| US 6,909,874 | Lapsed on the fee record Jun 2017 | Jun 2017 |
| US 7,302,644 | Term ended Jun 2020 | Jun 2020 |
| US 8,006,184 | Term ended Mar 2024 | Mar 2024 |
| US 11,109,114 | In force Jan 2031 | Jan 2031 |
| US 7,835,920 | Lapsed on the fee record Nov 2022 | Nov 2022 |
| US 9,123,380 | this patent Sep 2026 | Sep 2026 |
| Application 10/434,460 | Abandoned not computed | not computed |
| US 8,726,187 | Lapsed on the fee record May 2018 | May 2018 |
8 of 23 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Sep 2, 2003 Reel 14452, frame 442 | Holtz, Alex; Snyder, Robert J.; Benson, John R.; Couch, William H.; Larocque, Marcel; Hoeppner, Charles M.; Tingle, Keith Gregory; Todd, Richard; Smith, Maurice | Parkervison, Inc. | Assignment of Assignor's Interest |
| Jul 13, 2004 Reel 14893, frame 698 | Parkervision, Inc. | Thomson Licensing S.A. | Assignment of Assignor's Interest |
| Mar 21, 2011 Reel 25984, frame 641 | Thomson Licensing S.A. | Thomson Licensing | Change of Name and Legal Status |
| Mar 28, 2011 Reel 26028, frame 71 | Thomson Licensing | GVBB Holdings S.A.R.L. | Assignment of Assignor's Interest |
| Mar 17, 2021 Reel 56100, frame 612 | GVBB Holdings S.A.R.L. | Grass Valley Canada | Assignment of Assignor's Interest |
| Mar 20, 2024 Reel 66850, frame 869 | Grass Valley Canada; Grass Valley Limited | MS Private Credit Administrative Services LLC | Security Interest |
| Dec 12, 2025 Reel 73959, frame 584 | MS Private Credit Administrative Services LLC | MGG Investment Group LP | Assignment of Intellectual Property Security Agreements |
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
Note
The 1215 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
44
later US patents cite this one
That is top 10% of utility patents granted in 2015 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.