Lapsed Jul 14, 2023 on the fee record · Medium confidence
20-year base term ends Nov 29, 2032
Why Medium: A parent in the chain could not be resolved.
Second maintenance fee unpaid; grace period ended.
Held by Defined Diagnostics, LLC
Filed Mar 15, 2013 as application 13/844,450 · Granted Jul 14, 2015
Base term, 20 years from filing, plus 22 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 14, 2023
2012
2032
Clock starts
Nov 29, 2012
Nov 29, 2012
No longer in force
Jul 14, 2023
Jul 14, 2023
Granted
Jul 14, 2015
Jul 14, 2015
Term would have run to
Dec 21, 2032
Dec 21, 2032
base term
patent term adjustment
after the term ends
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
22
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.
9
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 21, 2032: its 20-year base term plus 22 days of term adjustment for prosecution delay. Confidence: Medium. 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 Nov 29, 2012, when application PCT/US2012/067041, the earliest non-provisional in its chain, was filed (this one was filed Mar 15, 2013); a parent in its chain could not be resolved (the next row) | Nov 29, 2032 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +22 days, USPTO patent term adjustment record | Dec 21, 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 3 maintenance fees paid | lapsed Jul 14, 2023 | High confidence |
| Computed term end | The steps above, in order | Jul 14, 2023 | Medium confidence |
This family
| US 9,075,042 | Lapsed on the fee record Jul 2023 | Jul 2023 |
| US 9,081,001 | this patent Jul 2023 | Jul 2023 |
| US 9,625,465 | In force (reinstated) Nov 2032 | Nov 2032 |
| US 9,213,043 | In force Nov 2032 | Nov 2032 |
| US 10,716,887 | In force Jun 2033 | Jun 2033 |
5 of 9 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 15, 2013 Reel 31030, frame 769 | Wellstat Diagnostics, LLC | PDL Biopharma, Inc. | Security Agreement |
| Aug 16, 2013 Reel 31031, frame 75 | Wellstat Diagnostics, LLC | White Oak Global Advisors, LLC, as Administrative Agent | Security Agreement |
| Sep 17, 2013 Reel 31227, frame 194 | Wellstat Diagnostics, LLC | PDL Biopharma, Inc. | Security Agreement |
| Oct 3, 2013 Reel 31340, frame 259 | Cook, Richard Alan; Cho, Chang; Davis, Charles Quentin; Dorsey, Kevin E; Harley, Jason Charles; Leland, Jonathan; Matikyan, Rober Krikor; Otten, Sjef; Peterman, Jeffrey Howard; Thomas, Brian B | Wellstat Diagnostics, LLC | Assignment of Assignor's Interest |
| Dec 21, 2016 Reel 41156, frame 44 | Wellstat Diagnostics, LLC | Defined Diagnostics, LLC | Change of Name |
| Jul 19, 2017 Reel 43252, frame 126 | Defined Diagnostics, LLC | PDL Biopharma, Inc. | Assignment of Assignor's Interest |
| Jan 19, 2021 Reel 55027, frame 238 | White Oak Global Advisors, LLC, as Administrative Agent | Defined Diagnostics, LLC (F/K/A Wellstat Diagnostics, LLC) | Release of Security Interest |
| Feb 16, 2021 Reel 55314, frame 75 | PDL Biopharma, Inc. | Defined Diagnostics, LLC (F/K/A Wellstat Diagnostics, LLC) | Release of Security Interest |
| Feb 16, 2021 Reel 55313, frame 842 | PDL Biopharma, Inc. | Defined Diagnostics, LLC (F/K/A Wellstat Diagnostics, LLC) | 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 22 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
28
later US patents cite this one
That is top 25% of utility patents granted in 2015 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.