Also listed on Kineto Wireless, LLC, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Feb 25, 2028 · High confidence

Computed 20-year base term

Held by Ribbon Communications Operating Company, Inc.

Filed May 12, 2005 as application 11/129,134 · Granted May 31, 2011

Base term plus 1592 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Feb 25, 2028

2003 2028

Clock starts
Oct 17, 2003

Term ends
Feb 25, 2028

Granted
May 31, 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

1,592

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.

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 1592 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 Oct 17, 2003, when application 10/688,470, the earliest non-provisional in its chain, was filed (this one was filed May 12, 2005)	Oct 17, 2023	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+1592 days, USPTO patent term adjustment record	Feb 25, 2028	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	Feb 25, 2028	High confidence

This family

US 7,127,250	Term ended Jul 2024	Jul 2024
US 7,634,269	Term ended no later than Dec 2024	no later than Dec 2024
US 7,640,008	Term ended Mar 2024	Mar 2024
US 7,873,015	In force no later than Jan 2028	no later than Jan 2028
US 7,369,859	Lapsed on the fee record May 2016	May 2016
US 7,606,190	Term ended May 2026	May 2026
US 7,349,698	Lapsed on the fee record Mar 2016	Mar 2016
US 7,953,423	this patent Feb 2028	Feb 2028

8 of 40 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
Aug 15, 2005 Reel 16887, frame 338	Gallagher, Michael D.; Gupta, Rajeev; Markovic, Milan; Shi, Jianxiong (Jason); Baranowski, Joseph G.	Kineto Wireless, Inc.	Assignment of Assignor's Interest
Aug 7, 2014 Reel 33492, frame 826	Kineto Wireless, LLC	Business Development Corporation of America, as Administrative Agent	Notice of Grant of Security Interest in Intellectual Property
Sep 23, 2014 Reel 33809, frame 952	Kineto Wireless, Inc.	Kineto Wireless, LLC	Change of Name
Sep 28, 2016 Reel 40173, frame 114	Business Development Corporation of America, as Administrative Agent	Kineto Wireless, LLC	Release of Security Interest
Oct 13, 2016 Reel 40351, frame 102	Kineto Wireless, LLC	Sonus Networks, Inc.	Assignment of Assignor's Interest
Dec 24, 2017 Reel 44957, frame 213	Sonus, Inc.	Sonus Networks, Inc.	Change of Name
Dec 24, 2017 Reel 44957, frame 243	Solstice Sapphire, Inc.; Sonus Networks, Inc.; Sonus Networks, Inc.	Sonus, Inc.	Merger and Change of Name
Jan 2, 2018 Reel 44978, frame 801	Genband US LLC; Sonus Networks, Inc.	Silicon Valley Bank, As Administrative Agent	Security Interest
Jan 16, 2019 Reel 48078, frame 36	Sonus Networks, Inc.	Ribbon Communications Operating Company, Inc.	Change of Name
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

Feb 2028

Term ends Feb 25, 2028. No further fees fall due before then

Note

The 1592 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

142

later US patents cite this one

That is top 5% 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.

Messaging in an Unlicensed Mobile Access Telecommunications System