US2794792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber reinforced rubber-resin product
Assignee: Delaware Research and Development Corp
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Filing: 1952-07-21
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Granted: 1957-06-04
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Expires: 1972-07-21
Abstract
No abstract record available.
Inventors
- 👤 Charles L Petze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:20
CPC Classifications
C; C08; C08L; C08L21/00; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A DIMENSIONALLY STABLE VULCANIZATE OF 15 TO 400 WEIGHT PARTS OF VULCANIZABLE ELASTIC RUBBER SELECTED FROM THE GROUP CONSISTING OF CONJUGATES DIOLEFIN POLYMERS AND POLYCHLOROPRENE; 100 WEIGHT PARTS OF COMPATIBLE AND AT LEAST PARTIALLY VULCANIZABLE RESIN SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE, RESINOUS COPOLYMERS OF STYRENE AND BUTADIENE, PHENOL-FORMALDEHYDE RESIN, RESORCINOLFORMALDEHYDE RESINS, RESINOUS COPOLYMERS OF BUTADIENE AND ACRYLONITRILE, AND 10% TO 50% BY WEIGHT OF THE TOTAL VULCANIZATE OF SHORT LENGTH GLASS FIBER REINFORCEMENT HAVING A DIAMETER OF FROM 1X10-3 INCH TO 1X10-6 INCH AND A LENGTH OF FROM 1/8 INCH TO 1/64 INCH DISPERSED THEREIN.
Claim 2
Dependent Claim
97 words
A DIMENSIONALLY STABLE VULCANIZATE OF 15 TO 400 WEIGHT PARTS OF VULCANIZABLE ELASTIC RUBBER SELECTED FROM THE GROUP CONSISTING OF CONJUGATES DIOLEFIN POLYMERS AND POLYCHLOROPRENE; 100 WEIGHT PARTS OF COMPATIBLE AND AT LEAST PARTIALLY VULCANIZABLE RESIN SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE, RESINOUS COPOLYMERS OF STYRENE AND BUTADIENE, PHENOL-FORMALDEHYDE RESIN, RESORCINOLFORMALDEHYDE RESINS, RESINOUS COPOLYMERS OF BUTADIENE AND ACRYLONITRILE, AND 10% TO 50% BY WEIGHT OF THE TOTAL VULCANIZATE OF SHORT LENGTH GLASS FIBER REINFORCEMENT HAVING A DIAMETER OF FROM 1X10-3 INCH TO 1X10-6 INCH AND A LENGTH OF FROM 1/8 INCH TO 1/64 INCH DISPERSED THEREIN.
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) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |