Also listed on Optofluidics Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 25, 2039 · Medium confidence
20-year base term ends Apr 25, 2039
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 11,674,874), so the cap could be lower.
Apr 25, 2019
Apr 25, 2039
Aug 27, 2024
This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 3 maintenance fees are 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 Apr 25, 2019, when application 16/394,173, the earliest non-provisional in its chain, was filed (this one was filed May 11, 2023) | Apr 25, 2039 | 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 resolved from the filed document (refs US 11,674,874) | resolves to Apr 25, 2039, no earlier than this term, so no change | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 25, 2039 | Medium confidence |
This family
| US 10,890,514 | In force May 2039 | May 2039 |
| US 11,366,047 | In force Apr 2039 | Apr 2039 |
| US 11,674,874 | In force no later than Apr 2039 | no later than Apr 2039 |
| US 12,070,725 | this patent Apr 2039 | Apr 2039 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Mar 12, 2024 Reel 66725, frame 299 | Castner, Thomas; Ashcroft, Colby; Dipaolo, Brian; Hart, Robert; Wall, Nathan | Optofluidics Inc. | Assignment of Assignor's Interest |
| Oct 28, 2025 Reel 72708, frame 475 | Optofluidics Inc. | Waters Technologies Corporation | 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
A terminal disclaimer resolved from the filed document, referencing US 11,674,874, ends no earlier than this term, so it caps nothing.