US3790512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide resin-dye compositions and methods of making the same
Assignee: Individual
•
Filing: 1973-03-13
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Granted: 1974-02-05
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Expires: 1993-03-13
Abstract
Abstract A RESIN-DYE COMPLEX FOR TOPICAL APPLICATION TO HUMAN AND NON-HUMAN KERATINOUS MATERIALS AND SYNTHETIC FIBERS, SAID COMPLEX BEING MADE OF A POLYAMIDE-POLYAMINE COMPOUND REACTED WITH A HEAT-REACTIVE PHENOLIC MATERIAL HAVING APPRECIABLE ALCOHOL SOLUBILITY, SAID RESULTING RESIN BEING COMPLEXED WITH A DYE.
Inventors
- 👤 E Wagner
- 👤 C Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:18
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/88; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; C; C08; C08G; C08G69/00; C08G69/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |