Unitika Ltd.
2 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
7
Ending by 2030
Nov 2028
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 Dec 2, 2026The maintenance fee for Method for producing nylon salt powder, and method for producing nylon (US 9,045,591) comes due Dec 2, 2026. Unpaid by Jun 2, 2027, it lapses early.
- 2 fees due Feb 18 to 25, 2027 · next Feb 18
- 2 fees due Mar 8 to 12, 2027 · next Mar 8
- 2 fees due Apr 3 to 27, 2027 · next Apr 3
- 1 fee due May 19, 2027The maintenance fee for Concealable film, laminate, and packaging material (US 10,479,060) comes due May 19, 2027. Unpaid by Nov 19, 2027, it lapses early.
- 3 fees due Jun 10 to 30, 2027 · next Jun 10
- 1 fee due Jul 16, 2027The maintenance fee for Activated carbon (US 11,873,235) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
- 2 fees due Sep 19 to 29, 2027 · next Sep 19
- 3 fees due Oct 7 to 23, 2027 · next Oct 7
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 2 terms have 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.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,115,256 | Polyamide film coated with vinylidene chloride copolymer mixture and method for producing the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,535,774 | Release sheet In force · From the USPTO record | In force | From the USPTO record | |
| US 8,247,068 | Coating material for forming gas-barrier layer and gas-barrier multilayer body In force · From the USPTO record | In force | From the USPTO record | |
| US 8,293,160 | Biaxially stretched polyamide resin film, and process for production thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 9,168,695 | Biaxially stretched polyamide resin film and production method thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 8,933,160 | Resin Composition and Product Molded From the Same In force · High confidence | In force | High confidence | |
| US 8,800,783 | Polyamide hollow fiber membrane, and production method thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 9,109,094 | Highly adhesive polyester film and packaging material using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,883,885 | Polyamide resin composition and method for producing polyamide resin composition In force · From the USPTO record | In force | From the USPTO record | |
| US 9,045,591 | Method for producing nylon salt powder, and method for producing nylon In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 57: 2 patents in force now held by others · 59 lapsed for an unpaid fee · 301 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
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
5 pending · 7 abandoned · 62 no status recorded