US2581908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nondiscoloring stabilized vinyl chloride resin compositions
Assignee: Bridgestone Firestone Inc
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Filing: 1950-02-18
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Granted: 1952-01-08
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Expires: 1970-02-18
Abstract
No abstract record available.
Inventors
- 👤 Siegfried M Kinzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/56; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L61/00; C08L61/20; C08L61/22; C08L61/24; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COMPOSITION STABLE TO HEAT AND LIGHT AND RESISTANT TO DISCOLORATION BY CONTACT WITH HYDROGEN SULFIDE COMPRISING (1) A RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYL CHLORIDE AND COPOLYMERS THEREOF WITH OTHER UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH AND CONTAINING AT LEAST 80% OF VINYL CHLORIDE COPOLYMERIZED THEREIN (2) A CADMIUM MERCAPTIDE AND (3) A CONDENSATE SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE AND MELAMINEFORMALDEHYDE CONDENSATES.
Claim 2
Dependent Claim
67 words
A COMPOSITION STABLE TO HEAT AND LIGHT AND RESISTANT TO DISCOLORATION BY CONTACT WITH HYDROGEN SULFIDE COMPRISING (1) A RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYL CHLORIDE AND COPOLYMERS THEREOF WITH OTHER UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH AND CONTAINING AT LEAST 80% OF VINYL CHLORIDE COPOLYMERIZED THEREIN (2) A CADMIUM MERCAPTIDE AND (3) A CONDENSATE SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE AND MELAMINEFORMALDEHYDE CONDENSATES.
References Cited (Backward Citations)
US2310449A
Cited
US2364172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |