Term ends Jan 8, 2031 · Medium confidence
20-year base term ends Oct 16, 2029
Why Medium: A parent in the chain could not be resolved.
Held by Viavi Solutions Inc.
Filed Mar 5, 2010 as application 12/718,189 · Granted Nov 21, 2017
Base term plus 449 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Oct 16, 2009
Oct 16, 2009
Term ends
Jan 8, 2031
Jan 8, 2031
Granted
Nov 21, 2017
Nov 21, 2017
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
449
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 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.
7
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 449 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 16, 2009, when application 12/580,604, the earliest non-provisional in its chain, was filed (this one was filed Mar 5, 2010); a parent in its chain could not be resolved (the next row) | Oct 16, 2029 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +449 days, USPTO patent term adjustment record | Jan 8, 2031 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 8, 2031 | Medium confidence |
This family
| Application 12/580,604 | Abandoned not computed | not computed |
| US 9,826,416 | this patent Jan 2031 | Jan 2031 |
| Application PCT/US2010/048927 | PCT application no patent term | no patent term |
| Application PCT/US2010/048929 | PCT application no patent term | no patent term |
| US 8,665,835 | Lapsed on the fee record Mar 2026 | Mar 2026 |
| US 9,226,178 | In force Oct 2029 | Oct 2029 |
| US 9,826,420 | In force Oct 2029 | Oct 2029 |
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 |
|---|---|---|---|
| Mar 5, 2010 Reel 24034, frame 782 | Hussein, Osama; Shabsigh, Aiman | Reverb Networks | Assignment of Assignor's Interest |
| Dec 9, 2015 Reel 37255, frame 412 | Reverb Networks, Inc. | Viavi Solutions Inc. | Assignment of Assignor's Interest |
| May 21, 2020 Reel 52729, frame 321 | Viavi Solutions Inc.; 3Z Telecom, Inc.; Acterna LLC; Acterna WG International Holdings LLC; Viavi Solutions LLC; Jdsu Acterna Holdings LLC; Optical Coating Laboratory, LLC; RPC Photonics, Inc.; TTC International Holdings, LLC | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Jan 5, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Administrative Agent | Viavi Solutions Inc. | Terminations of Security Interest at Reel 052729, Frame 0321 |
| Jan 5, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Administrative Agent | RPC Photonics, Inc. | Terminations of Security Interest at Reel 052729, Frame 0321 |
| Jan 5, 2022 Reel 58666, frame 639 | Wells Fargo Bank, National Association, as Administrative Agent | Viavi Solutions Inc.; RPC Photonics, Inc. | Terminations of Security Interest at Reel 052729, Frame 0321 |
| Oct 21, 2025 Reel 73189, frame 873 | Inertial Labs, Inc.; Viavi Solutions Inc.; Viavi Solutions Licensing LLC | Wells Fargo Bank, National Association, as Administrative Agent | Security Agreement |
| Nov 14, 2025 Reel 73571, frame 137 | Viavi Solutions Inc.; Viavi Solutions Licensing LLC; Inertial Labs, Inc. | Wells Fargo Bank, National Association, as Agent | Security Interest |
| May 28, 2026 reel/frame not recorded | Wells Fargo Bank, National Association, as Administrative Agent | Inertial Labs, Inc. | Release of Security Interest at Reel/Frame 73189/0873 |
| May 28, 2026 reel/frame not recorded | Wells Fargo Bank, National Association, as Administrative Agent | Viavi Solutions Inc. | Release of Security Interest at Reel/Frame 73189/0873 |
| May 28, 2026 reel/frame not recorded | Wells Fargo Bank, National Association, as Administrative Agent | Viavi Solutions Licensing LLC | Release of Security Interest at Reel/Frame 73189/0873 |
| May 28, 2026 Reel 75642, frame 381 | Wells Fargo Bank, National Association, as Administrative Agent | Inertial Labs, Inc.; Viavi Solutions Inc.; Viavi Solutions Licensing LLC | Release of Security Interest at Reel/Frame 73189/0873 |
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
Jan 2031
Term ends Jan 8, 2031. Maintenance fees still fall due before then
Note
The 449 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
26
later US patents cite this one
That is top 25% of utility patents granted in 2017 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.