US3313868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene-propylene rubbers containing vinyl aromatic hydrocarbon-alkyl acrylate copolymer
Assignee: GE Chemicals Inc
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Filing: 1961-10-23
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Granted: 1967-04-11
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Expires: 1981-10-23
Abstract
No abstract record available.
Inventors
- 👤 George B Freda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:34
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/34; C08K3/36; C08K5/00; C08K5/04; C08K5/14; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/14; C08L2205/00; C08L2205/03; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A COMPOSITION COMPRISING FROM ABOUT 95 TO ABOUT 70 PARTS BY WEIGHT OF (A) AN ETHYLENE-PROPYLENE RUBBER AND CORRESPONDINGLY FROM ABOUT 5 TO ABOUT 30 PARTS BY WEIGHT OF (B) A COPOLYMER OF (1) A VINYL AROMATIC HYDROCARBON AND (2) AN ALKYL ESTER OF ACRYLIC ACID IN WHICH THE ALKYL CHAIN CONTAINS 2 TO 10 CARBON ATOMS.
Claim 2
Dependent Claim
57 words
A COMPOSITION COMPRISING FROM ABOUT 95 TO ABOUT 70 PARTS BY WEIGHT OF (A) AN ETHYLENE-PROPYLENE RUBBER AND CORRESPONDINGLY FROM ABOUT 5 TO ABOUT 30 PARTS BY WEIGHT OF (B) A COPOLYMER OF (1) A VINYL AROMATIC HYDROCARBON AND (2) AN ALKYL ESTER OF ACRYLIC ACID IN WHICH THE ALKYL CHAIN CONTAINS 2 TO 10 CARBON ATOMS.
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |