Term ends Nov 16, 2026 · High confidence
20-year base term ended Jul 10, 2023
Held by Sprint Spectrum LLC
Filed Jul 10, 2003 as application 10/616,679 · Granted Nov 15, 2011
Base term plus 1225 days of patent term adjustment (USPTO delay)
Today
2003
2026
Clock starts
Jul 10, 2003
Jul 10, 2003
Term ends
Nov 16, 2026
Nov 16, 2026
Granted
Nov 15, 2011
Nov 15, 2011
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
1,225
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 1225 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 Jul 10, 2003, when this application, 10/616,679, was filed | Jul 10, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1225 days, USPTO patent term adjustment record | Nov 16, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 16, 2026 | 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 |
|---|---|---|---|
| Jul 10, 2003 Reel 14278, frame 917 | Mangal, Manish; Georgiou, George; Chakraborty, Anand | Sprint Spectrum L.P. | Assignment of Assignor's Interest |
| Mar 3, 2017 Reel 41937, frame 632 | Sprint Spectrum L.P. | Deutsche Bank Trust Company Americas | Grant of First Priority and Junior Priority Security Interest in Patent Rights |
| Apr 2, 2020 Reel 53182, frame 1 | T-Mobile USA, Inc.; Isbv LLC; T-Mobile Central LLC; LAYER3 TV, Inc.; Pushspring, Inc.; Boost Worldwide, LLC; Clearwire Communications LLC; Clearwire IP Holdings LLC; Clearwire Legacy LLC; Sprint Communications Company L.P.; Sprint International Incorporated; Sprint Spectrum L.P.; Assurance Wireless USA, L.P. | Deutsche Bank Trust Company Americas | Security Agreement |
| Apr 3, 2020 Reel 52313, frame 299 | Deutsche Bank Trust Company Americas | Sprint Spectrum L.P. | Termination and Release of First Priority and Junior Priority Security Interest in Patent Rights |
| Feb 11, 2022 Reel 59044, frame 22 | Sprint Spectrum L.P. | Sprint Spectrum LLC | Change of Name |
| Aug 23, 2022 Reel 62595, frame 1 | Deutsche Bank Trust Company Americas | Ibsv LLC; LAYER3 TV, LLC; Pushspring, LLC; T-Mobile Central LLC; T-Mobile USA, Inc.; Assurance Wireless USA, L.P.; Boost Worldwide, LLC; Clearwire Communications LLC; Clearwire IP Holdings LLC; Sprintcom LLC; Sprint Communications Company L.P.; Sprint International Incorporated; Sprint Spectrum LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Ibsv LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | LAYER3 TV, LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Pushspring, LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | T-Mobile Central LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | T-Mobile USA, Inc. | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Assurance Wireless USA, L.P. | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Boost Worldwide, LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Clearwire Communications LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Clearwire IP Holdings LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Sprintcom LLC | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Sprint Communications Company L.P. | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Sprint International Incorporated | Release of Security Interest |
| Aug 23, 2022 reel/frame not recorded | Deutsche Bank Trust Company Americas | Sprint Spectrum LLC | Release of Security 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.
What's changing
Nov 2026
Term ends Nov 16, 2026. No further fees fall due before then
Note
The 1225 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below 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.