US3338876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiourea-curable acrylate stocks, vulcanization process and vulcanizate therefrom
Assignee: ATK Launch Systems LLC
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Filing: 1964-05-18
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Granted: 1967-08-29
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Gaylord A Kanavel
- 👤 George F Bulbenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39; C08K5/405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A CURABLE ACRYLATE RUBBER STOCK COMPRISING IN UNIFORM ADMIXTURE (A) AN ACRYLATE INTERPOLYMER FORMED FROM A MAJOR PORTION OF A NON-CHLORINE CONTAINING MONOMERIC POLYMERIZABLE ACRYLATE-TYPE MATERIAL AND FROM A MINOR PORTION OF AT LEAST 1% BY WEIGHT OF SAID INTERPOLYMER OF AN ACTIVE CHLORINE-CONTAINING ETHYLENICALLY UNSATURATED POLYMERIZABLE MONOMERIC MATERIAL; AND (B) AT LEAST ONE THIOUREA SELECTED FROM THE GROUP OF THIOUREAS CONSISTING OF TYPE I THIOUREA AND TYPE II THIOUREA, (I) WHEREIN SAID TYPE I THIOUREA IS CHARACTERIZED BY THE STRUCTURE
Claim 2
Dependent Claim
81 words
A CURABLE ACRYLATE RUBBER STOCK COMPRISING IN UNIFORM ADMIXTURE (A) AN ACRYLATE INTERPOLYMER FORMED FROM A MAJOR PORTION OF A NON-CHLORINE CONTAINING MONOMERIC POLYMERIZABLE ACRYLATE-TYPE MATERIAL AND FROM A MINOR PORTION OF AT LEAST 1% BY WEIGHT OF SAID INTERPOLYMER OF AN ACTIVE CHLORINE-CONTAINING ETHYLENICALLY UNSATURATED POLYMERIZABLE MONOMERIC MATERIAL; AND (B) AT LEAST ONE THIOUREA SELECTED FROM THE GROUP OF THIOUREAS CONSISTING OF TYPE I THIOUREA AND TYPE II THIOUREA, (I) WHEREIN SAID TYPE I THIOUREA IS CHARACTERIZED BY THE STRUCTURE
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |