Patent US3222175A successfully refreshed from Google Patents.
US3222175A
Expired / Lapsed
US
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Process for forming metallic nonsilver images
Assignee: Eastman Kodak Co
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Filing: 1961-11-29
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Granted: 1965-12-07
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Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Rasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/02; H; H05; H05K; H05K3/00; H05K3/02; H05K3/06; H05K3/067; H05K3/0073; H05K3/0082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR ETCHING IMAGEWISE A METAL SURFACE WHEREIN THE METAL IS SELECTED FROM THE CLASS CONSISTING OF ALUMINUM, CADMIUM, MAGNESIUM, ZINC, INDIUM, COPPER AND GERMANIUM COMPRISING (A) CONTACTING SAID METAL SURFACE WITH AN EMULSION SURFACE OF A PHOTOGRAPHIC ELEMENT COMPRISING (A) AN INFRARED TRANSPARENT SUPPORT AND (B) A PHOTOEXPOSED SILVER HALIDE EMULSION LAYER WHICH HAS BEEN DEVELOPED TO A SILVER IMAGE AND FIXED, (B) AND IRRADIATING SAID SILVER IMAGE THROUGH SAID INFRARED TRANSPARENT SUPPORT WITH INFRARED RADIATION, SAID IRRADIATION BEING PERFORMED WHILE SAID EMULSION LAYER HAS IMBIBED THEREIN AN AQUEOUS SOLUTION CONTAINING A SEQUESTERING AGENT AND FLUOSILICATE ION.
Claim 2
Dependent Claim
99 words
A PROCESS FOR ETCHING IMAGEWISE A METAL SURFACE WHEREIN THE METAL IS SELECTED FROM THE CLASS CONSISTING OF ALUMINUM, CADMIUM, MAGNESIUM, ZINC, INDIUM, COPPER AND GERMANIUM COMPRISING (A) CONTACTING SAID METAL SURFACE WITH AN EMULSION SURFACE OF A PHOTOGRAPHIC ELEMENT COMPRISING (A) AN INFRARED TRANSPARENT SUPPORT AND (B) A PHOTOEXPOSED SILVER HALIDE EMULSION LAYER WHICH HAS BEEN DEVELOPED TO A SILVER IMAGE AND FIXED, (B) AND IRRADIATING SAID SILVER IMAGE THROUGH SAID INFRARED TRANSPARENT SUPPORT WITH INFRARED RADIATION, SAID IRRADIATION BEING PERFORMED WHILE SAID EMULSION LAYER HAS IMBIBED THEREIN AN AQUEOUS SOLUTION CONTAINING A SEQUESTERING AGENT AND FLUOSILICATE ION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |