Term ends no later than Nov 15, 2026 · Medium confidence
20-year base term ends Nov 15, 2026
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.
Nov 15, 2006
Nov 15, 2026
Oct 5, 2021
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. 1 of 1 maintenance fees is paid so far. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 15, 2006, when application PCT/SG2006/000352, the earliest non-provisional in its chain, was filed (this one was filed Nov 7, 2019) | Nov 15, 2026 | 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 | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Nov 15, 2026 | Medium confidence |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Sep 28, 2022 Reel 61244, frame 723 | Blanchard, Stephanie; Lee, Cheng Hsia Angeline; Nagaraj, Harish Kumar Mysore; Poulsen, Anders; Sun, Eric T.; Tan, Yee Ling Evelyn; William, Anthony Deodaunia | S*bio Pte Ltd. | Assignment of Assignor's Interest |
| Sep 28, 2022 Reel 61244, frame 838 | S*bio Pte Ltd. | Cell Therapeutics, Inc. | Assignment of Assignor's Interest |
| Sep 28, 2022 Reel 61561, frame 842 | Cell Therapeutics, Inc. | Cti Biopharma Corp. | Change of Name |
| Oct 3, 2024 Reel 68782, frame 512 | Cti Biopharma Corp. | Sobi, Inc. | Merger |
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
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 15, 2026. We will not guess the cap.