Term ends Jun 10, 2029 · Medium confidence
20-year base term ends Oct 6, 2028
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 10,463,609), so the cap could be lower.
Held by Wayne State University
Filed Aug 21, 2020 as application 17/000,059 · Granted Jun 27, 2023
Base term plus 247 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Oct 6, 2008
Oct 6, 2008
Term ends
Jun 10, 2029
Jun 10, 2029
Granted
Jun 27, 2023
Jun 27, 2023
base term
patent term adjustment
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
247
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 10,463,609, to Jun 10, 2029. The term already ends on or before that date, so the cap shortened nothing.
0 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.
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 247 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 1 maintenance fees are paid so far. Confidence: Medium. 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 Oct 6, 2008, when application PCT/US2008/078988, the earliest non-provisional in its chain, was filed (this one was filed Aug 21, 2020) | Oct 6, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +247 days, USPTO patent term adjustment record | Jun 10, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,463,609) | resolves to Jun 10, 2029, no earlier than this term, so no change | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 10, 2029 | Medium confidence |
This family
| Application PCT/US2008/078988 | PCT application no patent term | no patent term |
| US 10,463,609 | In force no later than Oct 2031 | no later than Oct 2031 |
| Application 15/173,369 | Abandoned not computed | not computed |
| Application 15/441,091 | Abandoned not computed | not computed |
| US 11,684,569 | this patent Jun 2029 | Jun 2029 |
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 |
|---|---|---|---|
| Oct 13, 2020 Reel 54039, frame 462 | Rangaramanujam, Kannan; Iezzi, Raymond; Raja Guru, Bharath; Kannan, Sujatha | Wayne State University | Assignment of Assignor's Interest |
| Oct 30, 2024 Reel 69066, frame 586 | Ashvattha Therapeutics, Inc. | Sagent Group, LLC | Security Interest |
| May 29, 2025 Reel 71258, frame 198 | Sagent Group, LLC, as Agent | Ashvattha Therapeutics, Inc. | Release of 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
Jun 2029
Term ends Jun 10, 2029. Maintenance fees still fall due before then
Note
The 247 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 10,463,609, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median 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.