Term ends Oct 14, 2028 · High confidence
20-year base term ends May 8, 2028
Held by Hibercell, Inc.
Filed May 8, 2008 as application 12/151,666 · Granted Jul 19, 2011
Base term plus 159 days of patent term adjustment (USPTO delay)
Today
2008
2028
Clock starts
May 8, 2008
May 8, 2008
Term ends
Oct 14, 2028
Oct 14, 2028
Granted
Jul 19, 2011
Jul 19, 2011
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
159
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
3
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 159 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 8, 2008, when this application, 12/151,666, was filed | May 8, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +159 days, USPTO patent term adjustment record | Oct 14, 2028 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 14, 2028 | High confidence |
This family
| US 7,981,447 | this patent Oct 2028 | Oct 2028 |
| US 8,530,642 | In force May 2028 | May 2028 |
| US 8,859,759 | In force no later than May 2028 | no later than May 2028 |
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 |
|---|---|---|---|
| Feb 25, 2009 Reel 22307, frame 780 | Cox, Donald J. | Biopolymer Engineering, Inc. Dba Biothera, Inc. | Assignment of Assignor's Interest |
| May 23, 2011 Reel 26325, frame 636 | Biopolymer Engineering, Inc. Dba Biothera, Inc. | Biothera, Inc. | Change of Name |
| Apr 8, 2015 Reel 35361, frame 929 | Biothera, Inc.; Life Source Basics Inc.; Biothera Health Inc. | Midcap Financial Trust, As Agent | Security Interest |
| Aug 19, 2020 Reel 53544, frame 385 | Biothera, Inc. | Hibercell, Inc. | Assignment of Assignor's Interest |
| Jul 13, 2021 Reel 56838, frame 328 | Midcap Financial Services, LLC | Biothera, Inc.; Life Source Basics Inc.; Biothera Health Inc. | Release of Security Interest |
| Jul 13, 2021 reel/frame not recorded | Midcap Financial Services, LLC | Biothera, Inc. | Release of Security Interest |
| Jul 13, 2021 reel/frame not recorded | Midcap Financial Services, LLC | Life Source Basics Inc. | Release of Security Interest |
| Jul 13, 2021 reel/frame not recorded | Midcap Financial Services, LLC | Biothera Health 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.
What's changing
Oct 2028
Term ends Oct 14, 2028. No further fees fall due before then
Note
The 159 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
14
later US patents cite this one
That is above the median of utility patents granted in 2011 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.