US3271354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment preparations for the coloration of plastic masses
Assignee: Hoechst AG
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Filing: 1962-12-27
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Granted: 1966-09-06
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Weissert Josef
- 👤 Schonbach Viktor
- 👤 Memmel Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:40
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C09; C09B; C09B67/00; C09B67/006; C08J2423/00; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD FOR COLORING A PLASTIC MASS WITH A PIGMENT COMPRISING INCORPORATING INTO SAID MASS A PREPARATION CONSISTING ESSENTIALLY OF FROM 40 TO 75% BY WEIGHT OF A PIGMENT AND FROM 25 TO 60% BY WEIGHT OF A CARRIER, SAID CARRIER CONSISTING ESSENTIALLY OF (A) FROM 10 TO95 WEIGHT PERCENT OF A COPOLYMER OF ETHYLENE AND PROPYLENE HAVING A PROPYLENE CONTENT OF FROM 30 TO 50 MOL PERCENT AND (B) FROM 5 TO 90 WEIGHT PERCENT OF AMORPHOUS POLYPROPYLENE HAVING AN INTRINSIC VISCOSITY OF
Claim 2
Independent Claim
84 words
A METHOD FOR COLORING A PLASTIC MASS WITH A PIGMENT COMPRISING INCORPORATING INTO SAID MASS A PREPARATION CONSISTING ESSENTIALLY OF FROM 40 TO 75% BY WEIGHT OF A PIGMENT AND FROM 25 TO 60% BY WEIGHT OF A CARRIER, SAID CARRIER CONSISTING ESSENTIALLY OF (A) FROM 10 TO95 WEIGHT PERCENT OF A COPOLYMER OF ETHYLENE AND PROPYLENE HAVING A PROPYLENE CONTENT OF FROM 30 TO 50 MOL PERCENT AND (B) FROM 5 TO 90 WEIGHT PERCENT OF AMORPHOUS POLYPROPYLENE HAVING AN INTRINSIC VISCOSITY OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |