US3043689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel photographic products and processes
Assignee: Polaroid Corp
•
Filing: 1960-08-22
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Granted: 1962-07-10
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Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Howard C Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:16
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; G03C8/56; Y; Y10; Y10S; Y10S430/00; Y10S430/142; Y10S8/00; Y10S8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A PHOTOGRAPHIC PRODUCT FOR COLOR DIFFUSION TRANSFER PROCESSES COMPRISING A PHOTOSENSITIVE ELEMENT, INCLUDING AT LEAST ONE SILVER HALIDE EMULSION LAYER, A COLOR-PROVIDING SUBSTANCES ASSOCIATED WITH SAID EMULSION, SAID COLORPROVIDING SUBSTANCES BEING CAPABLE OF FORMING AN IMAGEWISE DISTRIBUTION OF TRANSFERABLE COLOR-PROVIDING SUBSTANCES AS A FUNCTION OF DEVELOPMENT; AN IMAGE-RECEIVING ELEMENT INCLUDING AN IMAGE-RECEIVING LAYER AND A RUPUTURABLE CONTAINER HOLDING AN AQUEOUS ALKALINE PROCESSING SOLUTION SAID PHSOTOSENSITIVE ELEMENT AND SAID IMAGE-RECEIVING ELEMENT BEING CAPABLE OF BEING SUPERPOSED ON EACH OTHER AND SAID CONTAINER BEING ASSOCIATED WITH SAID ELEMENTS IN SUCH A MANNER THAT THE CONTAINER UPON BEING RUPTURED IS CAPABLE OF RELEASING SAID PROCESSING SOLUTION BETWEEN SAID SUPERPOSED ELEMENTS; THE IMPROVEMENT OF HAVING SAID IMAGE-RECEIVING LAYER COMPRISES AN ACETAL PREPARED BY CONDENSING POLYVINYL ALCOHOL WITH 4-PTRIDINE CARBOXALDEHYDE
Claim 2
Dependent Claim
126 words
IN A PHOTOGRAPHIC PRODUCT FOR COLOR DIFFUSION TRANSFER PROCESSES COMPRISING A PHOTOSENSITIVE ELEMENT, INCLUDING AT LEAST ONE SILVER HALIDE EMULSION LAYER, A COLOR-PROVIDING SUBSTANCES ASSOCIATED WITH SAID EMULSION, SAID COLORPROVIDING SUBSTANCES BEING CAPABLE OF FORMING AN IMAGEWISE DISTRIBUTION OF TRANSFERABLE COLOR-PROVIDING SUBSTANCES AS A FUNCTION OF DEVELOPMENT; AN IMAGE-RECEIVING ELEMENT INCLUDING AN IMAGE-RECEIVING LAYER AND A RUPUTURABLE CONTAINER HOLDING AN AQUEOUS ALKALINE PROCESSING SOLUTION SAID PHSOTOSENSITIVE ELEMENT AND SAID IMAGE-RECEIVING ELEMENT BEING CAPABLE OF BEING SUPERPOSED ON EACH OTHER AND SAID CONTAINER BEING ASSOCIATED WITH SAID ELEMENTS IN SUCH A MANNER THAT THE CONTAINER UPON BEING RUPTURED IS CAPABLE OF RELEASING SAID PROCESSING SOLUTION BETWEEN SAID SUPERPOSED ELEMENTS; THE IMPROVEMENT OF HAVING SAID IMAGE-RECEIVING LAYER COMPRISES AN ACETAL PREPARED BY CONDENSING POLYVINYL ALCOHOL WITH 4-PTRIDINE CARBOXALDEHYDE
References Cited (Backward Citations)
US2909430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |