US3679455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of a support for a photographic sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1970-11-24
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Granted: 1972-07-25
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Expires: 1990-11-24
Abstract
Abstract A PROCESS FOR THE PRODUCTION OF A SUPPORT FOR A PHOTOGRAPHIC SENSITIVEMATERIAL COMPRISING APPLYING A SUBCOAT COMPRISING A HYDROPHILIC RESIN TO THE SURFACE OF A POLYOLEFIN COATED PAPER, SAID RESIN HAVING A HIGHER RELATIVE DIELECTRIC CONSTANT AND A DIELECTRIC POWER FACTOR THAN THOSE OF THE POLYELEFIN AND GOOD ADHESION WITH A PHOTOGRAPHIC EMULSION, AND TREATING THE SUPPORT WITH MICROWAVES UNDER THE CONDITIONS THAT DISCHARGING DOES NOT OCCUR TO ADHERE THE SUBCOAT FIRMLY TO THE POLYOLEFIN SUPPORT IS DISCLOSED.
Inventors
- 👤 Tsuneo Kasugai
- 👤 Nobuhiko Minagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:09
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; G03C1/91; G03C1/915; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31754; Y10T428/31757; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |