Patent US2933474A successfully refreshed from Google Patents.
US2933474A
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Vinyl or allyl salicylate-ethylene copolymers and chelates thereof
Assignee: EIDP Inc
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Filing: 1958-10-02
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Granted: 1960-04-19
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Expires: 1978-10-02
Abstract
No abstract record available.
Inventors
- 👤 Carleton T Handy
- 👤 Henry S Rothrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:05
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/12; C08F18/04; C08F8/00; C08F8/44; C08L; C08L31/00; C08L31/02; C08L31/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A COPOLYMER OF ETHYLENE AND A SALICYLATE OF THE CLASS CONSISTING OF VINYL AND ALLYL SALICYLATES, SAID COPOLYMER CONTAINING IN THE POLYMERIZED FORM, BY WEIGHT, 0.05-50% OF THE SALICYLATE AND AT LEAST 50% BY WEIGHT OF ETHYLENE.
Claim 2
Dependent Claim
37 words
A COPOLYMER OF ETHYLENE AND A SALICYLATE OF THE CLASS CONSISTING OF VINYL AND ALLYL SALICYLATES, SAID COPOLYMER CONTAINING IN THE POLYMERIZED FORM, BY WEIGHT, 0.05-50% OF THE SALICYLATE AND AT LEAST 50% BY WEIGHT OF ETHYLENE.
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |