Term ends no later than Mar 31, 2031 · Medium confidence
20-year base term ends Mar 31, 2031
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Palette Life Sciences AB
Filed Jul 18, 2014 as application 14/335,563 · Granted Feb 9, 2016
Base term, 20 years from filing
Today
2011
2031
Clock starts
Mar 31, 2011
Mar 31, 2011
Ends no later than
Mar 31, 2031
Mar 31, 2031
Granted
Feb 9, 2016
Feb 9, 2016
base term
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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
2 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.
4
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. 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 Mar 31, 2011, when application PCT/EP2011/055009, the earliest non-provisional in its chain, was filed (this one was filed Jul 18, 2014) | Mar 31, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Mar 31, 2031 | Medium confidence |
This family
| US 8,834,927 | In force no later than Jul 2031 | no later than Jul 2031 |
| US 8,828,437 | In force no later than Mar 2031 | no later than Mar 2031 |
| US 9,254,263 | this patent no later than Mar 2031 | no later than Mar 2031 |
3 of 4 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 |
|---|---|---|---|
| Dec 12, 2017 Reel 44371, frame 984 | Apotek Produktion & Laboratorier AB | Pharmanest AB | Assignment of Assignor's Interest |
| Dec 12, 2017 Reel 44847, frame 390 | Pharmanest AB | Sundberg, Mark; Brodin, Arne; Kållberg, Nils | Assignment Rescission |
| Dec 12, 2017 Reel 44847, frame 516 | Sundberg, Mark; Brodin, Arne | Pharmanest AB | Assignment of Assignor's Interest |
| Dec 12, 2017 Reel 44847, frame 585 | Kållberg, Nils | Apotek Produktion & Laboratorier AB | Assignment of Assignor's Interest |
| Dec 12, 2017 reel/frame not recorded | Pharmanest AB | Sundberg, Mark | Assignment Rescission |
| Dec 12, 2017 reel/frame not recorded | Pharmanest AB | Brodin, Arne | Assignment Rescission |
| Dec 12, 2017 reel/frame not recorded | Pharmanest AB | Kållberg, Nils | Assignment Rescission |
| Dec 13, 2017 Reel 44858, frame 23 | Pharmanest AB | Pharmanest AB | Change Ofaddress |
| Aug 14, 2020 Reel 53503, frame 617 | Pharmanest AB | Palette Life Sciences AB | Change of Name |
| Oct 5, 2021 Reel 57704, frame 604 | Palette Life Sciences AB | Silicon Valley Bank, As Agent | Security Interest |
| Mar 21, 2023 Reel 63044, frame 44 | Palette Life Sciences, Inc. | Orbimed Royalty & Credit Opportunities IV, LP | Security Interest |
| Apr 18, 2023 Reel 64002, frame 531 | Palette Life Sciences, Inc.; Palette Life Sciences AB | Orbimed Royalty & Credit Opportunities IV, LP | Corrective Assignment to Correct the Add Second Assignor Previously Recorded at Reel: 063044 Frame: 0044. Assignor(S) Hereby Confirms the Assignment. |
| May 2, 2023 Reel 63511, frame 489 | Silicon Valley Bank UK Limited | Palette Life Sciences AB | Release of Security Interest |
| May 2, 2023 Reel 63517, frame 1 | Silicon Valley Bank | Silicon Valley Bank UK Limited | Court Order |
| Oct 10, 2023 Reel 65172, frame 138 | Orbimed Royalty & Credit Opportunities IV, LP | Palette Life Sciences, Inc.; Palette Life Sciences AB | Release of Security Interest |
| Oct 10, 2023 reel/frame not recorded | Orbimed Royalty & Credit Opportunities IV, LP | Palette Life Sciences, Inc. | Release of Security Interest |
| Oct 10, 2023 reel/frame not recorded | Orbimed Royalty & Credit Opportunities IV, LP | Palette Life Sciences AB | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2031
Term ends no later than Mar 31, 2031. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Mar 31, 2031. We will not guess the cap.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2016 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.