Patent US3093620A successfully refreshed from Google Patents.
US3093620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-alkenyl-2-norbornenes and sulfur-curable elastomeric copolymers thereof
Assignee: EIDP Inc
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Filing: 1960-03-29
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Granted: 1963-06-11
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Expires: 1980-03-29
Abstract
No abstract record available.
Inventors
- 👤 Gladding Edward Karcher
- 👤 Robinson Donald Nellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:58
CPC Classifications
C; C08; C08F; C08F210/00; C07; C07C; C07C13/00; C07C13/28; C07C13/32; C07C13/39; C07C13/42; C07C13/43; C08F10/00; C07C2602/00; C07C2602/36; C07C2602/42; C08L; C08L23/00; C08L23/02; C08L23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SULFUR-CURABLE COPOLYMER OF ETHYLENE, AT LEAST 1 ALPHA OLEFINE HAVING THE STRUCTURE R-CH=CH2 WHEREIN R IS A C1-C8 ALKYL RADICAL, AND 5-ALKENYL-2-NORBORNENE, SAID ALKENYL RADICAL HAVING FROM 3 TO 18 CARBON ATOMS, THE CARBON TO CARBON DOUBLE BOND OF SAID RADICAL BEING INTERNAL, SAID COPOLYMER HAVING AN IODINE NUMBER BETWEEN 5 AND 60, AND, SAID COPOLYMER CONTAINING AT LEAST ABOUT 20% ETHYLENE UNITS BY WEIGHT, AT LEAST 25% OF SAID ALPHA OLEFIN UNITS BY WEIGHT, AND, AT LEAST ABOUT 0.03 GRAM-MOLES PER 100 GRAMS OF SAID COPOLYMER AND NOT OVER ABOUT 20% BY WEIGHT OF SAID COPOLYMER OF SAID 5-ALKENYL2-NORBORNENE.
Claim 2
Dependent Claim
101 words
A SULFUR-CURABLE COPOLYMER OF ETHYLENE, AT LEAST 1 ALPHA OLEFINE HAVING THE STRUCTURE R-CH=CH2 WHEREIN R IS A C1-C8 ALKYL RADICAL, AND 5-ALKENYL-2-NORBORNENE, SAID ALKENYL RADICAL HAVING FROM 3 TO 18 CARBON ATOMS, THE CARBON TO CARBON DOUBLE BOND OF SAID RADICAL BEING INTERNAL, SAID COPOLYMER HAVING AN IODINE NUMBER BETWEEN 5 AND 60, AND, SAID COPOLYMER CONTAINING AT LEAST ABOUT 20% ETHYLENE UNITS BY WEIGHT, AT LEAST 25% OF SAID ALPHA OLEFIN UNITS BY WEIGHT, AND, AT LEAST ABOUT 0.03 GRAM-MOLES PER 100 GRAMS OF SAID COPOLYMER AND NOT OVER ABOUT 20% BY WEIGHT OF SAID COPOLYMER OF SAID 5-ALKENYL2-NORBORNENE.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |