Collateral for a security interest recorded Dec 31, 2019 (Citizens Bank, N.A. (as Successor by Merger to Citizens Bank of Pennsylvania)).
Term ends Jan 18, 2037 · High confidence
20-year base term ends Jan 18, 2037
Held by Communications Test Design, Inc.
Filed Jan 18, 2017 as application 15/409,079 · Granted Oct 31, 2017
Base term, 20 years from filing
Today
2017
2037
Clock starts
Jan 18, 2017
Jan 18, 2017
Term ends
Jan 18, 2037
Jan 18, 2037
Granted
Oct 31, 2017
Oct 31, 2017
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. 2 of 3 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 Jan 18, 2017, when this application, 15/409,079, was filed | Jan 18, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 18, 2037 | High confidence |
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 |
|---|---|---|---|
| Jan 19, 2017 Reel 41398, frame 820 | Parsons, Gerald J.; Parsons, Michael P.; Parsons, Leo D.; Davis, Nidhin; Sieben, Andrew; Parsons, Sean; Paknejad, Mohammad R.; Tennou, Marc Aurel Kamsu; McGrath, John J. | Communications Test Design, Inc. | Assignment of Assignor's Interest |
| Dec 31, 2019 Reel 51394, frame 938 | Communications Test Design, Inc. | Citizens Bank, N.A. (as Successor by Merger to Citizens Bank of Pennsylvania) | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Jan 2037
Term ends Jan 18, 2037. Maintenance fees still fall due before then
Citations
5
later US patents cite this one
That is above the median 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.