Term ends May 25, 2038 · High confidence
20-year base term ends May 25, 2038
Held by Viaphoton LLC
Filed Mar 27, 2019 as application 16/366,471 · Granted Feb 4, 2020
Base term, 20 years from filing
Today
2018
2038
Clock starts
May 25, 2018
May 25, 2018
Term ends
May 25, 2038
May 25, 2038
Granted
Feb 4, 2020
Feb 4, 2020
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
2
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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is 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 May 25, 2018, when application 15/989,718, the earliest non-provisional in its chain, was filed (this one was filed Mar 27, 2019) | May 25, 2038 | 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 25, 2038 | High confidence |
This family
| US 10,281,672 | In force May 2038 | May 2038 |
| US 10,551,585 | this patent May 2038 | May 2038 |
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 |
|---|---|---|---|
| Dec 9, 2019 Reel 51214, frame 629 | Mullsteff, David M. | Tactical Deployment Systems, LLC | Assignment of Assignor's Interest |
| Aug 11, 2023 Reel 64568, frame 204 | Tactical Deployment Systems, LLC | Viaphoton, Inc. | Assignment of Assignor's Interest |
| Oct 7, 2024 Reel 68823, frame 344 | Viaphoton, Inc. | Eclipse Business Capital LLC | Security Interest |
| Sep 17, 2025 Reel 72590, frame 868 | Viaphoton Inc. | Phoenix Merchant Agent, LP, as Administrative Agent | Security Interest |
| Apr 8, 2026 Reel 75352, frame 418 | Viaphoton, Inc. | Viaphoton LLC | Change of Name |
| Apr 15, 2026 Reel 75423, frame 696 | Phoenix Merchant Agent, LP | Viaphoton LLC | Release of Patent Security Interest Recorded at R/F 72590/0868 |
| Apr 15, 2026 Reel 75423, frame 589 | Viaphoton LLC | Phoenix Merchant Agent, LP | 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
May 2038
Term ends May 25, 2038. Maintenance fees still fall due before then
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2020 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.