US3003989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigmentation of molded goods and cast sheets with anthraquinone dyestuffs
Assignee: Sandoz AG
•
Filing: 1958-07-28
•
Granted: 1961-10-10
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Ehrhardt Klaus
- 👤 Kehrer Fritz
- 👤 Schoenauer Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:29
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/28; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08K5/16; C08K5/20; C08K5/22; C08K5/23; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/363; C09B43/00; C09B43/08; C09B43/10; C09B43/32; C09B43/36; C09B56/00; C09B56/12; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; D01; D01F; D01F1/00; D01F1/02; D01F1/06; D06; D06P; D06P1/00; D06P1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PROCESS FOR MASS PIGMENTING FILAMENTS, MOLDED GOODS AND CAST SHEETS MADE WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SYNTHETIC POLMERS, COPOLYMERS AND POLYCONDENSATES WHEREIN AN ANTHRAQUINONE DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
33 words
A PROCESS FOR MASS PIGMENTING FILAMENTS, MOLDED GOODS AND CAST SHEETS MADE WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF SYNTHETIC POLMERS, COPOLYMERS AND POLYCONDENSATES WHEREIN AN ANTHRAQUINONE DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |