Chinook Sciences LLC
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Feb 2032
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Jan 28, 2027The maintenance fee for Active reformer (US 9,090,838) comes due Jan 28, 2027. Unpaid by Jul 28, 2027, it lapses early.
Recent changes
- 1 term has ended since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
Showing 1 to 4 of 4
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,011,575 | Gas treatment In force (reinstated) · From the USPTO record | In force (reinstated) | From the USPTO record | |
| US 9,090,838 | Active reformer In force (reinstated) · From the USPTO record | In force (reinstated) | From the USPTO record | |
| US 9,370,808 | Apparatus for processing waste material In force · From the USPTO record | In force | From the USPTO record | |
| US 12,391,555 | Process for producing activated carbon and hydrogen In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 4: 4 lapsed for an unpaid fee · 5 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
Every application published under this name has become a patent.