Term ended Dec 17, 2023 · High confidence
20-year base term ended Aug 18, 2023
USPTO later recorded it as expired for non-payment on Oct 28, 2024.
Held by Analytical Technologies, LLC
Filed Mar 6, 2018 as application 15/913,460 · Granted Sep 22, 2020
Base term plus 121 days of patent term adjustment (USPTO delay)
Today
Term ended Dec 17, 2023
2003
2026
Clock starts
Aug 18, 2003
Aug 18, 2003
Term ended
Dec 17, 2023
Dec 17, 2023
Granted
Sep 22, 2020
Sep 22, 2020
base term
patent term adjustment
after the term ends
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
121
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
5
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 121 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 Aug 18, 2003, when application 10/642,841, the earliest non-provisional in its chain, was filed (this one was filed Mar 6, 2018) | Aug 18, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +121 days, USPTO patent term adjustment record | Dec 17, 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 | No maintenance fee can end the term early | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Oct 28, 2024, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Dec 17, 2023 | High confidence |
This family
| US 8,224,700 | Term ended Nov 2026 | Nov 2026 |
| US 8,799,083 | Term ended Nov 2023 | Nov 2023 |
| US 9,911,164 | Term ended Apr 2025 | Apr 2025 |
| US 10,783,596 | this patent Dec 2023 | Dec 2023 |
| Application 17/022,309 | 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 |
|---|---|---|---|
| Nov 16, 2022 Reel 61789, frame 443 | Silver, Andrew, MR. | Analytical Technologies, LLC | 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.
What's changing
Note
The 121 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below 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.