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US2997390A Expired / Lapsed US ⏱️ 0.0 years remaining

Novel color processes and products

Assignee: Polaroid Corp
•
Filing: 1956-09-04
•
Granted: 1961-08-22
•
Expires: 1976-09-04
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Abstract

No abstract record available.

Inventors

  • 👤 Edwin H Land

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:31
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/30; G02B5/3008; G03; G03C; G03C8/00; G03C8/02; G03C8/08; Y; Y10; Y10S; Y10S430/00; Y10S430/142

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 152 words
IN A PROCESS OF FORMING TRANSFER IMAGES IN COLOR COMPRISING EXPOSING A PHOTOSENSITIVE ELEMENT COMPRISING AT LEAST ONE SILVER HALIDE EMULSION AND A COLORED COLORPROVIDING SUBSTANCE SO POSITIONED WITHIN SAID PHOTOSENSITIVE ELEMENT AS TO ABSORB LIGHT BY WHICH SAID SILVER HALIDE EMULSION IS EXPOSABLE, DEVELOPING SAID EXPOSED PHOTOSENSITIVE ELEMENT TO PROVIDE AN IMAGEWISE DIFFUSABLE DISTRIBUTION OF SAID COLOR-PROVIDING SUBSTANCE, AND TRANSFERRING, BY DIFFUSION, AT LEAST A PART OF SAID IMAGEWISE DISTRIBUTION TO A SUPERPOSED IMAGE-RECEIVING MATERIAL TO IMPART A COLOR IMAGE TO SAID IMAGE-RECEIVING MATERIAL, THE IMPROVEMENT IN WHICH SAID COLORED COLOR-PROVIDING SUBSTANCE IS PRESENT IN SAID PHOTOSENSITIVE ELEMENT DURING EXPOSURE IN A FORM EXHIBITING SUBSTANTIALLY THE SAME PLANE OF POLARIZATION THROUGHT THE THICKNESS OF THE LAYER CONTAINING SAID COLORED COLOR-PROVIDING SUBNSTANCE, WHEREBY SAID COLORED COLOR-PROVIDING SUBSTANCE ABSORBS LESS LIGHT DURING EXPOSURE AND THE LAYER CONTAINING SAID COLORED COLOR-PROVIDING SUBSTANCE TRANSMITS LIGHT WHICH OTHERWISE WOULD BE ABSORBED BY SAID COLORED COLOR-PROVIDING SUBSTANCE.
Claim 2
Dependent Claim 152 words
IN A PROCESS OF FORMING TRANSFER IMAGES IN COLOR COMPRISING EXPOSING A PHOTOSENSITIVE ELEMENT COMPRISING AT LEAST ONE SILVER HALIDE EMULSION AND A COLORED COLORPROVIDING SUBSTANCE SO POSITIONED WITHIN SAID PHOTOSENSITIVE ELEMENT AS TO ABSORB LIGHT BY WHICH SAID SILVER HALIDE EMULSION IS EXPOSABLE, DEVELOPING SAID EXPOSED PHOTOSENSITIVE ELEMENT TO PROVIDE AN IMAGEWISE DIFFUSABLE DISTRIBUTION OF SAID COLOR-PROVIDING SUBSTANCE, AND TRANSFERRING, BY DIFFUSION, AT LEAST A PART OF SAID IMAGEWISE DISTRIBUTION TO A SUPERPOSED IMAGE-RECEIVING MATERIAL TO IMPART A COLOR IMAGE TO SAID IMAGE-RECEIVING MATERIAL, THE IMPROVEMENT IN WHICH SAID COLORED COLOR-PROVIDING SUBSTANCE IS PRESENT IN SAID PHOTOSENSITIVE ELEMENT DURING EXPOSURE IN A FORM EXHIBITING SUBSTANTIALLY THE SAME PLANE OF POLARIZATION THROUGHT THE THICKNESS OF THE LAYER CONTAINING SAID COLORED COLOR-PROVIDING SUBNSTANCE, WHEREBY SAID COLORED COLOR-PROVIDING SUBSTANCE ABSORBS LESS LIGHT DURING EXPOSURE AND THE LAYER CONTAINING SAID COLORED COLOR-PROVIDING SUBSTANCE TRANSMITS LIGHT WHICH OTHERWISE WOULD BE ABSORBED BY SAID COLORED COLOR-PROVIDING SUBSTANCE.

References Cited (Backward Citations)

US2298058A Cited
US2409959A Cited
US2484818A Cited
US2614926A Cited
US2481189A Cited
US2647049A Cited
US2774668A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-08-21 1965-02-20 1965-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-08-21 1969-02-20 1969-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-08-21 1973-02-20 1973-08-22 $7700.00 Window Closed / Lapsed

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