Term ends Nov 16, 2028 · High confidence
20-year base term ends Aug 7, 2027
Filed Jan 9, 2012 as application 13/346,651 · Granted Jul 18, 2017
USPTO first gave this application the number US 9,577,908 and withdrew it before it issued. That number now leads here.
Base term plus 467 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Aug 7, 2007
Aug 7, 2007
Term ends
Nov 16, 2028
Nov 16, 2028
Granted
Jul 18, 2017
Jul 18, 2017
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
467
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
4
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 467 days past its 20-year base term on prosecution delay. 2 of 2 maintenance fees are paid so far. 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 Aug 7, 2007, when application 11/835,233, the earliest non-provisional in its chain, was filed (this one was filed Jan 9, 2012) | Aug 7, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +467 days, USPTO patent term adjustment record | Nov 16, 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 | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 16, 2028 | High confidence |
This family
| US 7,903,576 | In force Dec 2027 | Dec 2027 |
| US 8,094,576 | In force Sep 2027 | Sep 2027 |
| US 8,432,827 | In force no later than Nov 2036 | no later than Nov 2036 |
| US 9,712,419 | this patent Nov 2028 | Nov 2028 |
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 |
|---|---|---|---|
| Oct 7, 2013 Reel 31358, frame 461 | Matityahu, Eldad; Shaw, Robert; Carpio, Dennis; Le, Ky | Net Optics, Inc. | Assignment of Assignor's Interest |
| Feb 18, 2014 Reel 32271, frame 151 | Net Optics, Inc. | Bank of America, N.A., as Administrative Agent | Security Agreement |
| Feb 2, 2015 Reel 34870, frame 598 | Bank of America, N.A., Resigning Administrative Agent | Silicon Valley Bank, as Successor Administrative Agent | Notice of Substitution of Administrative Agent |
| Nov 19, 2015 Reel 37087, frame 622 | Net Optics, Inc. | Ixia | Assignment of Assignor's Interest |
| Apr 24, 2017 Reel 42126, frame 749 | Silicon Valley Bank, as Successor Administrative Agent | Net Optics, Inc. | Release of Security Interest |
| Oct 18, 2017 Reel 44222, frame 695 | Ixia | Keysight Technologies Singapore (Holdings) Pte. Ltd. | Assignment of Assignor's Interest |
| Oct 19, 2018 Reel 48225, frame 65 | Keysight Technologies Singapore (Holdings) Pte. Ltd. | Keysight Technologies Singapore (Sales) Pte. Ltd. | Assignment of Assignor's 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 2028
Term ends Nov 16, 2028. No further fees fall due before then
Note
The 467 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
63
later US patents cite this one
That is top 5% 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.