US3364021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting and liquid developable electro-photographic element
Assignee: Eastman Kodak Co
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Filing: 1964-10-09
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Granted: 1968-01-16
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Expires: 1984-10-09
Abstract
No abstract record available.
Inventors
- 👤 Stanley S Hazen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:40
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/087; G03G5/043; G03G5/0433; G03G5/05; G03G5/0528; G03G5/0532; G03G5/0539
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AN ELECTROPHOTOGRAPHIC ELEMENT COMPRISING A CORE LAYER (A) COMPRISING PHOTOCONDUCTIVE ZINC OXIDE AND A RESINOUS COPOLYMER CONSISTING OF FROM 60-80% BY WEIGHT OF STYRENE AND FROM 40-20% BY WEIGHT OF BUTADIENE, OVERCOATED ON EACH SIDE WITH A SOLVENT RESISTANT LAYER (B) COMPRISING PHOTOCONDUCTIVE ZINC OXIDE AND A RESINOUS COPOLYMER SONSISTING OF FROM 70-95% BY WEIGHT VINYL CHLORIDE AND FROM 30-5% BY WEIGHT OF VINYL ACETATE.
Claim 2
Dependent Claim
65 words
AN ELECTROPHOTOGRAPHIC ELEMENT COMPRISING A CORE LAYER (A) COMPRISING PHOTOCONDUCTIVE ZINC OXIDE AND A RESINOUS COPOLYMER CONSISTING OF FROM 60-80% BY WEIGHT OF STYRENE AND FROM 40-20% BY WEIGHT OF BUTADIENE, OVERCOATED ON EACH SIDE WITH A SOLVENT RESISTANT LAYER (B) COMPRISING PHOTOCONDUCTIVE ZINC OXIDE AND A RESINOUS COPOLYMER SONSISTING OF FROM 70-95% BY WEIGHT VINYL CHLORIDE AND FROM 30-5% BY WEIGHT OF VINYL ACETATE.
References Cited (Backward Citations)
US2987395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |