US3535255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers quaternized to a tertiary amine dye
Assignee: L'Oréal SA
•
Filing: 1969-02-14
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Granted: 1970-10-20
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Expires: 1989-02-14
Abstract
No abstract record available.
Inventors
- 👤 Gregoire Kalopissis
- 👤 Andre Viout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:35
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/355; A61K8/40; A61K8/41; A61K8/418; A61K8/49; A61K8/4906; A61K8/4926; A61K8/72; A61K8/81; A61K8/8141; A61K8/8152; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F8/00; C08F8/30; C08F8/44; C09; C09B; C09B51/00; A61K2800/00; A61K2800/40; A61K2800/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2763633A
Cited
US2752324A
Cited
US2941980A
Cited
US3050506A
Cited
GB993181A
Cited
US3251743A
Cited
US3190860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |