Lapsed Mar 30, 2022 on the fee record · High confidence
20-year base term ended Feb 26, 2023
Third maintenance fee unpaid; grace period ended.
Held by Ciena Corporation
Filed Oct 1, 2007 as application 11/906,424 · Granted Mar 30, 2010
Base term, 20 years from filing, plus 130 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 30, 2022
2003
2026
Clock starts
Feb 26, 2003
Feb 26, 2003
No longer in force
Mar 30, 2022
Mar 30, 2022
Granted
Mar 30, 2010
Mar 30, 2010
Term would have run to
Jul 6, 2023
Jul 6, 2023
base term
patent term adjustment
after the term ends
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
130
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.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jul 6, 2023: its 20-year base term plus 130 days of term adjustment for prosecution delay. 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 Feb 26, 2003, when application 10/374,882, the earliest non-provisional in its chain, was filed (this one was filed Oct 1, 2007) | Feb 26, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +130 days, USPTO patent term adjustment record | Jul 6, 2023 | 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 | lapsed Mar 30, 2022 | High confidence |
| Computed term end | The steps above, in order | Mar 30, 2022 | High confidence |
This family
| US 7,277,393 | Term ended Mar 2026 | Mar 2026 |
| US 7,688,740 | this patent Mar 2022 | Mar 2022 |
| US 9,026,674 | In force Nov 2030 | Nov 2030 |
| US 8,547,851 | Term ended no later than May 2023 | no later than May 2023 |
| Application 14/703,305 | Abandoned not computed | not computed |
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 1, 2007 Reel 19971, frame 531 | Jacobson, Van; Yu, Haobo | Packet Design Inc. | Assignment of Assignor's Interest |
| Oct 6, 2011 Reel 27024, frame 720 | Packet Design, Inc., a Delaware Corporation | Comerica Bank, a Texas Banking Association | Security Agreement |
| Mar 15, 2013 Reel 30022, frame 136 | Comerica Bank | Packet Design, Inc. | Release of Security Interest |
| Mar 26, 2013 Reel 30089, frame 810 | Packet Design, Inc. | PD Acquisition, LLC | Assignment of Assignor's Interest |
| Mar 26, 2013 Reel 30091, frame 880 | PD Acquisition, LLC | Packet Design, LLC | Change of Name |
| Sep 10, 2014 Reel 33713, frame 276 | Packet Design, LLC | Comerica Bank | Security Interest |
| Jul 2, 2018 Reel 46464, frame 226 | Comerica Bank | Packet Design, LLC | Release of Security Interest at Reel 033713 / Frame 0276 |
| Jul 13, 2018 Reel 46342, frame 761 | Packet Design, LLC | Ciena Corporation | Merger |
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
Note
The 130 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2010 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.