US2884402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated pigments and methods of preparing same
Assignee: Columbia Southern Chemical Corp
•
Filing: 1955-10-14
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Granted: 1959-04-28
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Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 John H Bachmann
- 👤 John W Sellers
- 👤 Melvin P Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:35
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; B; B82; B82Y; B82Y30/00; C08K9/06; C09; C09C; C09C1/00; C09C1/28; C09C1/30; C09C1/3063; C09C1/309; C09C3/00; C09C3/08; C09C3/12; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/64; C01P2004/80; C01P2006/00; C01P2006/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A COMPOSITION WHICH COMPRISES A RUBBER OF THE GROUP CONSISTING OF NATURAL RUBBER BUTADIENE-STYRENE COPOLYMERS, BUTADIENE-ACRYLONITRILE COPOLYMERS 2-CHLOROBUTADIENE POLYMERS AND ISOBUTYLENE POLYMERS, AND A FINELY-DIVIDED HYDRATED PRECIPITATED SILICEOUS PIGMENT HAVING AN AVERAGE ULTIMATE PARTICLE SIZE BELOW 0.1 MICRON WHICH PIGMENT HAS BEEN TREATED WITH AN ORGANO-METALLIC COMPLEX OF THE GROUP CONSISTING OF A STEARATO CHROMIC CHLO RIDE, METHACRYLATO CHROMIC CHLORIDE AND OLEATO CHROMIC CHLORIDE.
Claim 2
Dependent Claim
64 words
A COMPOSITION WHICH COMPRISES A RUBBER OF THE GROUP CONSISTING OF NATURAL RUBBER BUTADIENE-STYRENE COPOLYMERS, BUTADIENE-ACRYLONITRILE COPOLYMERS 2-CHLOROBUTADIENE POLYMERS AND ISOBUTYLENE POLYMERS, AND A FINELY-DIVIDED HYDRATED PRECIPITATED SILICEOUS PIGMENT HAVING AN AVERAGE ULTIMATE PARTICLE SIZE BELOW 0.1 MICRON WHICH PIGMENT HAS BEEN TREATED WITH AN ORGANO-METALLIC COMPLEX OF THE GROUP CONSISTING OF A STEARATO CHROMIC CHLO RIDE, METHACRYLATO CHROMIC CHLORIDE AND OLEATO CHROMIC CHLORIDE.
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) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |