Also listed on Phigenix, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ended Oct 16, 2026 · High confidence
20-year base term ended Oct 16, 2026
Filed Mar 17, 2011 as application 13/050,604 · Granted Mar 12, 2013
Base term plus 154 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Oct 16, 2026
2006
2026
Clock starts
Oct 16, 2006
Oct 16, 2006
Term ended
Oct 16, 2026
Oct 16, 2026
Granted
Mar 12, 2013
Mar 12, 2013
base term
after the term ends
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
154
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 8,080,534.
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.
37
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 154 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees were paid, so no fee lapse ended it. 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 Oct 16, 2006, when application PCT/US2006/040215, the earliest non-provisional in its chain, was filed (this one was filed Mar 17, 2011) | Oct 16, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +154 days, USPTO patent term adjustment record | Mar 19, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,080,534) | capped to Oct 16, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 16, 2026 | High confidence |
This family
| US 7,964,577 | In force Jul 2027 | Jul 2027 |
| US 8,088,603 | In force Jul 2028 | Jul 2028 |
| Application 12/546,292 | Abandoned not computed | not computed |
| Application PCT/US2009/054913 | PCT application no patent term | no patent term |
| US 8,080,534 | Term ended Oct 2026 | Oct 2026 |
| Application PCT/US2010/024740 | PCT application no patent term | no patent term |
| US 8,318,692 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| US 8,735,365 | In force no later than Jul 2027 | no later than Jul 2027 |
8 of 37 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 |
|---|---|---|---|
| Mar 25, 2011 Reel 26024, frame 361 | Donald, Carlton D. | Phigenix, Inc. | Assignment of Assignor's Interest |
| Jun 12, 2014 Reel 33091, frame 658 | Donald, Carlton D. | Medical University of South Carolina | Assignment of Assignor's Interest |
| Jun 12, 2014 Reel 33091, frame 920 | Medical University of South Carolina | Musc Foundation for Research Development | 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.
What's changing
Note
The 154 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 8,080,534.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2013 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.