Collateral for a security interest recorded Jul 29, 2025 (PLF 2025-A LP).
Term ended Sep 15, 2025 · High confidence
20-year base term ended Nov 24, 2024
Held by Teratech Corporation
Filed Jun 28, 2013 as application 13/930,808 · Granted Nov 27, 2018
Base term plus 295 days of patent term adjustment (USPTO delay)
Today
Term ended Sep 15, 2025
2004
2026
Clock starts
Nov 24, 2004
Nov 24, 2004
Term ended
Sep 15, 2025
Sep 15, 2025
Granted
Nov 27, 2018
Nov 27, 2018
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
295
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
3
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 295 days past its 20-year base term on 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 Nov 24, 2004, when application 10/997,062, the earliest non-provisional in its chain, was filed (this one was filed Jun 28, 2013) | Nov 24, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +295 days, USPTO patent term adjustment record | Sep 15, 2025 | 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 1 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Sep 15, 2025 | High confidence |
This family
| Application 10/997,062 | Abandoned not computed | not computed |
| US 10,139,489 | this patent Sep 2025 | Sep 2025 |
| US 11,675,073 | In force Feb 2028 | Feb 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 |
|---|---|---|---|
| Jan 19, 2018 Reel 44666, frame 563 | Brodsky, Michael; Chiang, Alice M.; Maurer, David; Wong, William | Teratech Corporation | Assignment of Assignor's Interest |
| Jul 29, 2025 Reel 71862, frame 356 | Teratech Corp. | PLF 2025-A 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
Note
The 295 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is above the median of utility patents granted in 2018 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.