Lapsed Jun 7, 2024 on the fee record · High confidence
20-year base term ends Jan 10, 2031
Second maintenance fee unpaid; grace period ended.
Held by Phoenix Biotechnology, Inc.
Filed Jun 4, 2013 as application 13/909,613 · Granted Jun 7, 2016
Base term, 20 years from filing, plus 343 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Jun 7, 2024
2011
2031
Clock starts
Jan 10, 2011
Jan 10, 2011
No longer in force
Jun 7, 2024
Jun 7, 2024
Granted
Jun 7, 2016
Jun 7, 2016
Term would have run to
Jun 23, 2031
Jun 23, 2031
base term
patent term adjustment
after the term ends
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
343
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,481,086, US 9,220,778.
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.
13
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jun 23, 2031: its 20-year base term plus 343 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Jan 10, 2011, when application 12/987,693, the earliest non-provisional in its chain, was filed (this one was filed Jun 4, 2013) | Jan 10, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +343 days, USPTO patent term adjustment record | Dec 19, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,481,086, US 9,220,778) | capped to Jun 23, 2031 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Jun 7, 2024 | High confidence |
| Computed term end | The steps above, in order | Jun 7, 2024 | High confidence |
This family
| US 8,481,086 | Lapsed on the fee record Jul 2025 | Jul 2025 |
| Application PCT/US2011/020672 | PCT application no patent term | no patent term |
| US 9,011,937 | In force Jan 2031 | Jan 2031 |
| Application PCT/US2011/059090 | PCT application no patent term | no patent term |
| US 9,358,293 | this patent Jun 2024 | Jun 2024 |
| US 9,220,778 | In force Feb 2032 | Feb 2032 |
| US 8,893,965 | In force Jun 2033 | Jun 2033 |
| Application 14/658,652 | Abandoned not computed | not computed |
8 of 13 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 |
|---|---|---|---|
| Aug 8, 2013 Reel 30967, frame 106 | Addington, Otis C; Newman, Robert A | Phoenix Biotechnology, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 343 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,481,086, US 9,220,778.
Citations
37
later US patents cite this one
That is top 10% of utility patents granted in 2016 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.