Term ends Apr 28, 2033 · High confidence
20-year base term ends Feb 19, 2029
Held by Pthera, LLC
Filed Feb 19, 2009 as application 12/389,294 · Granted Jul 23, 2019
Base term plus 1529 days of patent term adjustment (USPTO delay)
Today
2009
2033
Clock starts
Feb 19, 2009
Feb 19, 2009
Term ends
Apr 28, 2033
Apr 28, 2033
Granted
Jul 23, 2019
Jul 23, 2019
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
1,529
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 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.
11
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 1529 days past its 20-year base term on prosecution delay. 1 of 3 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 Feb 19, 2009, when this application, 12/389,294, was filed | Feb 19, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1529 days, USPTO patent term adjustment record | Apr 28, 2033 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 28, 2033 | High confidence |
This family
| Application 11/385,980 | Abandoned not computed | not computed |
| Application PCT/US2007/002474 | PCT application no patent term | no patent term |
| US 10,357,662 | this patent Apr 2033 | Apr 2033 |
| Application PCT/US2009/037121 | PCT application no patent term | no patent term |
| Application 12/403,824 | Abandoned not computed | not computed |
| US 10,695,579 | In force Dec 2028 | Dec 2028 |
| Application PCT/US2011/023980 | PCT application no patent term | no patent term |
| US 11,273,319 | Lapsed on the fee record Mar 2026 | Mar 2026 |
8 of 11 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 |
|---|---|---|---|
| Jun 29, 2009 Reel 22891, frame 263 | De Taboada, Luis; Streeter, Jackson; Bradley, Scott; Delapp, Scott; McNeill, Terry | Photothera, Inc. | Assignment of Assignor's Interest |
| Feb 22, 2011 Reel 25829, frame 859 | Photothera, Inc. | Oxford Finance Corporation; Comerica Bank | Security Agreement |
| Feb 22, 2011 reel/frame not recorded | Photothera, Inc. | Oxford Finance Corporation | Security Agreement |
| Feb 22, 2011 reel/frame not recorded | Photothera, Inc. | Comerica Bank | Security Agreement |
| Oct 5, 2012 Reel 29082, frame 677 | Photothera, Inc. | Photothera IP Holdings, Inc. | Assignment of Assignor's Interest |
| Sep 20, 2016 Reel 39797, frame 924 | De Taboada, Luis H. | Pthera, LLC | Assignment of Assignor's Interest |
| Sep 20, 2016 Reel 39797, frame 961 | Advanced Photonics Solutions, Inc. | De Taboada, Luis H. | 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
Apr 2033
Term ends Apr 28, 2033. Maintenance fees still fall due before then
Note
The 1529 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
34
later US patents cite this one
That is top 10% of utility patents granted in 2019 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.