Also listed on Cedar Point Communications, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 28, 2026 · High confidence
20-year base term ended Dec 1, 2023
Held by Genband US LLC
Filed Dec 1, 2003 as application 10/726,000 · Granted Jun 9, 2009
Base term plus 1093 days of patent term adjustment (USPTO delay)
Today
2003
2026
Clock starts
Dec 1, 2003
Dec 1, 2003
Term ends
Nov 28, 2026
Nov 28, 2026
Granted
Jun 9, 2009
Jun 9, 2009
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
1,093
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.
3
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 1093 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 1, 2003, when this application, 10/726,000, was filed | Dec 1, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1093 days, USPTO patent term adjustment record | Nov 28, 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 28, 2026 | High confidence |
This family
| US 6,931,211 | Term ended Dec 2022 | Dec 2022 |
| US 7,545,801 | this patent Nov 2026 | Nov 2026 |
| US 7,466,924 | Term ended no later than Aug 2021 | no later than Aug 2021 |
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 |
|---|---|---|---|
| Dec 2, 2008 Reel 21917, frame 157 | Miller, Paul Jr.; English, Daniel W.; Doucette, John; Saab, Hicham | Cedar Point Communications, Inc. | Assignment of Assignor's Interest |
| Dec 2, 2008 Reel 21917, frame 974 | Fitzgerald, Jeffrey J. | Cedar Point Communications, Inc. | Employee Noncompetition, Nondisclosure and Developments Agreement |
| Dec 2, 2008 Reel 21917, frame 988 | Mishra, Rajesh | Cedar Point Communications, Inc. | Employee Noncompetition, Nondisclosure and Developments Agreement |
| Jan 10, 2011 Reel 25610, frame 391 | Cedar Point Communications, Inc. | Cedar Point Communications, LLC | Change of Name |
| Dec 2, 2011 Reel 27315, frame 293 | Genbend US LLC (a Delaware LLC) | Comerica Bank (a Texas Banking Association), as Agent; Attn: National Documentation Services | Amended and Restated Intellectual Property Security Agreement |
| Sep 24, 2012 Reel 29014, frame 614 | Cedar Point Communications LLC | Genband US LLC | Merger |
| Jul 6, 2016 Reel 39269, frame 234 | Genband US LLC | Silicon Valley Bank, As Administrative Agent | Patent Security Agreement |
| Jul 7, 2016 Reel 39280, frame 467 | Comerica Bank, As Agent | Genband US LLC | Release and Reassignment of Patents |
| Jan 3, 2017 Reel 41422, frame 80 | Genband US LLC | Silicon Valley Bank, As Administrative Agent | Corrective Assignment to Correct Patent No. 6381239 Previously Recorded at Reel: 039269 Frame: 0234. Assignor(S) Hereby Confirms the Patent Security Agreement. |
| Dec 29, 2017 Reel 44986, frame 303 | Silicon Valley Bank, As Administrative Agent | Genband US LLC | Termination and Release of Patent Security Agreement |
| Jan 2, 2018 Reel 44978, frame 801 | Genband US LLC; Sonus Networks, Inc. | Silicon Valley Bank, As Administrative Agent | Security Interest |
| Mar 3, 2020 Reel 52076, frame 905 | Ribbon Communications Operating Company, Inc. | Citizens Bank, N.A., as Administrative Agent | Security Interest |
| Dec 6, 2021 Reel 58949, frame 497 | Silicon Valley Bank, As Administrative Agent | Ribbon Communications Operating Company, Inc. (F/K/A Genband US LLC and Sonus Networks, Inc.) | Termination and Release of Patent Security Agreement at R/F 044978/0801 |
| Jun 24, 2024 Reel 67822, frame 433 | Citizens Bank, N.a. | Ribbon Communications Operating Company, Inc. (F/K/A Genband US LLC and Sonus Networks, Inc.) | 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
Nov 2026
Term ends Nov 28, 2026. No further fees fall due before then
Note
The 1093 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 below the median of utility patents granted in 2009 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.