Term ends Oct 20, 2037 · High confidence
20-year base term ends May 11, 2037
Filed May 11, 2017 as application 15/593,280 · Granted May 19, 2020
Base term plus 162 days of patent term adjustment (USPTO delay)
Today
2017
2037
Clock starts
May 11, 2017
May 11, 2017
Term ends
Oct 20, 2037
Oct 20, 2037
Granted
May 19, 2020
May 19, 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
162
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 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.
6
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 162 days past its 20-year base term on 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 11, 2017, when this application, 15/593,280, was filed | May 11, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +162 days, USPTO patent term adjustment record | Oct 20, 2037 | 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 | Oct 20, 2037 | High confidence |
This family
| US 10,654,922 | this patent Oct 2037 | Oct 2037 |
| US 11,059,885 | In force May 2037 | May 2037 |
| US 11,746,147 | In force Sep 2038 | Sep 2038 |
| US 12,043,662 | In force May 2037 | May 2037 |
| US 12,715,912 | In force May 2037 | May 2037 |
| Application 18/782,004 | Pending 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 12, 2021 Reel 58103, frame 243 | Lu, Yuefeng; Lu, Jian-feng | Askgene Pharma Inc.; Jiangsu Aosaikang Pharmaceutical Co., Ltd. | Assignment of Assignor's Interest |
| Nov 12, 2021 Reel 58120, frame 644 | Jiangsu Aosaikang Pharmaceutical Co., Ltd. | Askgene Pharma Inc. | Assignment of Assignor's Interest |
| Nov 12, 2021 reel/frame not recorded | Lu, Yuefeng; Lu, Jian-feng | Askgene Pharma Inc. | Assignment of Assignor's Interest |
| Nov 12, 2021 reel/frame not recorded | Lu, Yuefeng; Lu, Jian-feng | Jiangsu Aosaikang Pharmaceutical Co., Ltd. | Assignment of Assignor's Interest |
| Oct 26, 2026 Reel 76509, frame 890 | Askgene Pharma, Inc. | Jiangsu Aosaikang Pharmaceutical Co., Ltd. | 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
Oct 2037
Term ends Oct 20, 2037. Maintenance fees still fall due before then
Note
The 162 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is top 25% 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.