Term ends Feb 7, 2036 · High confidence
20-year base term ends Dec 11, 2034
Held by Accuscan Sciences Inc.
Filed Jun 6, 2016 as application 15/102,241 · Granted Sep 8, 2020
Base term plus 423 days of patent term adjustment (USPTO delay)
Today
2014
2036
Clock starts
Dec 11, 2014
Dec 11, 2014
Term ends
Feb 7, 2036
Feb 7, 2036
Granted
Sep 8, 2020
Sep 8, 2020
base term
patent term adjustment
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
423
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 10,155,980, to Feb 7, 2036. The term already ends on or before that date, so the cap shortened nothing.
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.
11
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 423 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. 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 Dec 11, 2014, when application PCT/US2014/069848, the earliest non-provisional in its chain, was filed (this one was filed Jun 6, 2016) | Dec 11, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +423 days, USPTO patent term adjustment record | Feb 7, 2036 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,155,980) | resolves to Feb 7, 2036, no earlier than this term, so no change | 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 | Feb 7, 2036 | High confidence |
This family
| Application PCT/US2014/069848 | PCT application no patent term | no patent term |
| US 10,767,222 | this patent Feb 2036 | Feb 2036 |
| Application PCT/US2016/056126 | PCT application no patent term | no patent term |
| US 10,752,942 | In force Oct 2036 | Oct 2036 |
| US 11,286,519 | In force Dec 2034 | Dec 2034 |
| US 11,859,246 | In force Dec 2034 | Dec 2034 |
| US 11,578,359 | In force Mar 2037 | Mar 2037 |
| US 11,597,973 | In force Dec 2034 | Dec 2034 |
8 of 11 applications in this family shown, earliest filings first. 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 2, 2016 Reel 40202, frame 33 | Sun, Zhaohui; Lin, Shengrong; Zhao, Grace Qizhi; Tang, Paul Ling-fung | Accuragen, Inc. | Assignment of Assignor's Interest |
| Aug 14, 2017 Reel 43286, frame 302 | Accuragen, Inc. | Accuragen Holdings Limited | Assignment of Assignor's Interest |
| Dec 23, 2025 Reel 74035, frame 680 | Accuragen Holdings Limited | Accuscan Sciences Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2036
Term ends Feb 7, 2036. Maintenance fees still fall due before then
Note
The 423 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 10,155,980, ends no earlier than this term, so it caps nothing.
Citations
65
later US patents cite this one
That is top 5% 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.