Term ends Aug 6, 2035 · High confidence
20-year base term ends Feb 2, 2035
Held by Biocircuit Technologies, Inc.
Filed Mar 29, 2021 as application 17/215,193 · Granted Dec 12, 2023
Base term plus 185 days of patent term adjustment (USPTO delay)
Today
2015
2035
Clock starts
Feb 2, 2015
Feb 2, 2015
Term ends
Aug 6, 2035
Aug 6, 2035
Granted
Dec 12, 2023
Dec 12, 2023
base term
patent term adjustment
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
185
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,959,631, to Aug 6, 2035. The term already ends on or before that date, so the cap shortened nothing.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows 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 185 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 2 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 Feb 2, 2015, when application PCT/US2015/014122, the earliest non-provisional in its chain, was filed (this one was filed Mar 29, 2021) | Feb 2, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +185 days, USPTO patent term adjustment record | Aug 6, 2035 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,959,631) | resolves to Aug 6, 2035, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 6, 2035 | High confidence |
This family
| Application PCT/US2015/014122 | PCT application no patent term | no patent term |
| US 10,959,631 | In force Jun 2036 | Jun 2036 |
| US 11,839,478 | this patent Aug 2035 | Aug 2035 |
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 29, 2021 Reel 58501, frame 76 | Rajaraman, Swaminathan; Ross, James D.; Clements, Isaac | Axion Biosystems, Inc. | Assignment of Assignor's Interest |
| Dec 29, 2021 Reel 58501, frame 87 | Axion Biosystems, Inc. | Biocircuit Technologies, Inc. | Assignment of Assignor's Interest |
| Dec 29, 2021 Reel 58599, frame 678 | Butera, Robert J.; Patel, Yogi A. | Georgia Tech Research Corporation | 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
Aug 2035
Term ends Aug 6, 2035. Maintenance fees still fall due before then
Note
The 185 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,959,631, ends no earlier than this term, so it caps nothing.
Citations
7
later US patents cite this one
That is top 10% of utility patents granted in 2023 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.