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US3676209A
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Antistatic film properties using methyl vinyl ether/maleic acid interpolymer
Assignee: GAF Corp
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Filing: 1970-06-12
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Granted: 1972-07-11
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Expires: 1990-06-12
Abstract
Abstract PHOTOGRAPHIC FILM RESISTANT TO THE ACCUMULATION OF STATIC ELECTRICAL CHARGES THEREON IS OBTAINED BY ADDING TO THE OUTERMOST LAYER ON AT LEAST ON SIDE OF THE FILM A NEUTRALIZED INTERPOLYMER OF METHYL VINYL ETHER AND MALEIC ACID, TYPICALLY IN AMOUNTS FROM ONE TO TEN PERCENT BY WEIGHT BASED ON THE SOLIDS CONTENT OF THE OUTERMOST LAYER.
Inventors
- 👤 E Scudder Mackey
- 👤 Vincent J Miceli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768
Claims Analysis
Total Claims: 0
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |