Term ends Jun 26, 2029 · High confidence
20-year base term ends Apr 27, 2027
Held by Helio, LLC
Filed Apr 27, 2007 as application 11/796,359 · Granted Nov 15, 2011
Base term plus 791 days of patent term adjustment (USPTO delay)
Today
2007
2029
Clock starts
Apr 27, 2007
Apr 27, 2007
Term ends
Jun 26, 2029
Jun 26, 2029
Granted
Nov 15, 2011
Nov 15, 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
791
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 791 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 Apr 27, 2007, when this application, 11/796,359, was filed | Apr 27, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +791 days, USPTO patent term adjustment record | Jun 26, 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 | Jun 26, 2029 | 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 |
|---|---|---|---|
| Jun 21, 2007 Reel 19484, frame 159 | Duarte, Matias; Rossen, Jeremy D.; Yun, Wesley; Kim, Sang Kyun | Helio, LLC | Assignment of Assignor's Interest |
| Oct 23, 2008 Reel 21719, frame 749 | Helio LLC | Virgin Mobile USA, L.P. | Change of Control of Assignee |
| Mar 3, 2017 Reel 41880, frame 42 | Virgin Mobile USA, 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 177 | Deutsche Bank Trust Company Americas | Virgin Mobile USA, L.P. | Termination and Release of First Priority and Junior Priority Security Interest in Patent Rights |
| 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2029
Term ends Jun 26, 2029. No further fees fall due before then
Note
The 791 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
13
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.