Lapsed Mar 15, 2026 on the fee record · High confidence
20-year base term ends Feb 19, 2029
First maintenance fee unpaid; grace period ended.
Filed Sep 28, 2018 as application 16/147,293 · Granted Mar 15, 2022
Base term plus 251 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Mar 15, 2026
2009
2029
Clock starts
Feb 19, 2009
Feb 19, 2009
Term ended
Mar 15, 2026
Mar 15, 2026
Granted
Mar 15, 2022
Mar 15, 2022
base term
after the term ends
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
251
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 10,695,579, US 11,273,319, US 7,303,578.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
11
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 Dec 7, 2022: its 20-year base term plus 251 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 Feb 19, 2009, when application 12/389,294, the earliest non-provisional in its chain, was filed (this one was filed Sep 28, 2018) | Feb 19, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +251 days, USPTO patent term adjustment record | Oct 28, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,695,579, US 11,273,319, US 7,303,578) | capped to Dec 7, 2022 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | lapsed Mar 15, 2026 | High confidence |
| Computed term end | The steps above, in order | Mar 15, 2026 | 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 | In force 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 | this patent 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 |
|---|---|---|---|
| Nov 27, 2018 Reel 47592, frame 435 | De Taboada, Luis; Streeter, Jackson | Photothera, Inc. | Assignment of Assignor's Interest |
| Nov 27, 2018 Reel 47592, frame 687 | Photothera, Inc. | Photothera IP Holdings, Inc. | Assignment of Assignor's Interest |
| Nov 27, 2018 Reel 47592, frame 856 | Advanced Photonics Solutions, Inc. | Luis H. de Taboada | Assignment of Assignor's Interest |
| Nov 27, 2018 Reel 47593, frame 11 | De Taboada, Luis | Pthera, LLC | Assignment of Assignor's Interest |
| Aug 5, 2021 Reel 57085, frame 935 | Photothera IP Holdings, Inc. | Advanced Photonics Solutions, Inc. | Assignment of Assignor's Interest |
| Aug 5, 2021 Reel 58027, frame 806 | De Taboada, Luis | Pthera LLC | Corrective Assignment to Correct the Correct Name of the Assignee Is Pthera LLC. Previously Recorded at Reel: 047593 Frame: 0011. Assignor(S) Hereby Confirms the Assignment. |
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 251 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 10,695,579, US 11,273,319, US 7,303,578.
Citations
5
later US patents cite this one
That is top 25% of utility patents granted in 2022 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.