Patent US3262993A successfully refreshed from Google Patents.
US3262993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers of 2, 2-dimethylalkyl methacrylate and acrylonitrile with butadiene polymers
Assignee: Eastman Kodak Co
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Filing: 1963-08-09
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Granted: 1966-07-26
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Expires: 1983-08-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Hugh J Hagemeyer
- 👤 Alden E Blood
- 👤 Marvin B Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:34
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A RESINOUS GRAFT COPOLYMER OF (1) FROM 20-85% BY WEIGHT OF MONOMERIC MATERIAL CONSISTING OF FROM 15-80% BY WEIGHT OF ACRYLONITRILE AND FROM 85-20% BY WEIGHT OF AT LEAST ONE 2,2-DIMETHYLALKYL METHACRYLATE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
36 words
A RESINOUS GRAFT COPOLYMER OF (1) FROM 20-85% BY WEIGHT OF MONOMERIC MATERIAL CONSISTING OF FROM 15-80% BY WEIGHT OF ACRYLONITRILE AND FROM 85-20% BY WEIGHT OF AT LEAST ONE 2,2-DIMETHYLALKYL METHACRYLATE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |