US3395034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of applying thin coats of gelatin containing silver halide to a film
Assignee: EIDP Inc
•
Filing: 1965-05-19
•
Granted: 1968-07-30
•
Expires: 1985-05-19
Abstract
No abstract record available.
Inventors
- 👤 Przybilla Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR APPLYING A THIN COATING OF AN AQUEOUS GELATIN-CONTAINING SILVER HALIDE EMULSION TO THE SURFACE OF AN ORGANIC POLYMER FILM SUPPORT CHARACTERIZED IN THAT DURING THE APPLYING OF THE AQUEOUS EMULSION THERE IS PROVIDED A ROLL HAVING A PLURALITY OF UNIFORMLY SPACED ORIFICES COMMUNICATING WITH A HOLLOW INTERIOR THROUGH WHICH A GAS IS FORCED OUTWARDLY TO FORM AN INSULATING GASEOUS LAYER OF LOW THERMAL CONDUCTIVITY ADJACENT THE BACK SURFACE OF THE FILM SUPPORT TO PREVENT HEAT TRANSFER BETWEEN THE ROLL SURFACE AND THE COATING.
Claim 2
Dependent Claim
86 words
A PROCESS FOR APPLYING A THIN COATING OF AN AQUEOUS GELATIN-CONTAINING SILVER HALIDE EMULSION TO THE SURFACE OF AN ORGANIC POLYMER FILM SUPPORT CHARACTERIZED IN THAT DURING THE APPLYING OF THE AQUEOUS EMULSION THERE IS PROVIDED A ROLL HAVING A PLURALITY OF UNIFORMLY SPACED ORIFICES COMMUNICATING WITH A HOLLOW INTERIOR THROUGH WHICH A GAS IS FORCED OUTWARDLY TO FORM AN INSULATING GASEOUS LAYER OF LOW THERMAL CONDUCTIVITY ADJACENT THE BACK SURFACE OF THE FILM SUPPORT TO PREVENT HEAT TRANSFER BETWEEN THE ROLL SURFACE AND THE COATING.
References Cited (Backward Citations)
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US2269169A
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Cited
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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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |