Term ends Jul 6, 2032 · High confidence
20-year base term ends Apr 25, 2031
Held by Biomason, Inc.
Filed Mar 10, 2017 as application 15/455,689 · Granted Jul 21, 2020
Base term plus 438 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Apr 25, 2011
Apr 25, 2011
Term ends
Jul 6, 2032
Jul 6, 2032
Granted
Jul 21, 2020
Jul 21, 2020
base term
patent term adjustment
fee events
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
438
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 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.
21
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 438 days past its 20-year base term on prosecution delay. 1 of 2 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 Apr 25, 2011, when application 13/093,335, the earliest non-provisional in its chain, was filed (this one was filed Mar 10, 2017) | Apr 25, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +438 days, USPTO patent term adjustment record | Jul 6, 2032 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jul 6, 2032 | High confidence |
This family
| US 8,728,365 | In force Dec 2032 | Dec 2032 |
| Application PCT/US2011/033920 | PCT application no patent term | no patent term |
| US 8,951,786 | In force Sep 2031 | Sep 2031 |
| US 9,199,880 | In force Apr 2031 | Apr 2031 |
| US 9,428,418 | In force Apr 2031 | Apr 2031 |
| Application 15/066,692 | Abandoned not computed | not computed |
| US 9,796,626 | In force Apr 2031 | Apr 2031 |
| Application PCT/US2017/021833 | PCT application no patent term | no patent term |
8 of 21 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 29, 2017 Reel 43437, frame 941 | Dosier, Ginger K; Hill, Thomas A.; Dosier, John Michael; McAllister, Steven W. | Biomason, 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
Jul 2032
Term ends Jul 6, 2032. Maintenance fees still fall due before then
Note
The 438 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
15
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.