Patent US3330656A successfully refreshed from Google Patents.
US3330656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel photographic products and processes
Assignee: Polaroid Corp
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Filing: 1963-08-14
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Granted: 1967-07-11
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Expires: 1983-08-14
Abstract
No abstract record available.
Inventors
- 👤 Norman W Schuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:26
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; C; C07; C07C; C07C205/00; C07C205/45; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; G03C1/00; G03C1/76; G03C1/815; G03C1/8155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PHOTOGRAPHIC PRODUCT FOR A COLOR DIFFUSION TRANSFER PROCESS COMPRISING (A) A PHOTOSENSITIVE ELEMENT, INCLUDING A SILVER HALIDE EMULSION, HAVING DISPOSED THEREIN COLOR-PROVIDING SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF DYES AND DYE INTERMEDIATES, SAID COLOR-PROVIDING SUBSTANCES BEING ADAPTED TO FORM AN IMAGEWISE DISTRIBUTION OF MOBILE COLOR-PROVIDING SUBSTANCES AS A FUNCTION OF DEVELOPMENT OF THE SILVER HALIDE EMULSION, (B) AN IMAGE-RECEIVING ELEMENT, SAID IMAGE-RECEIVING ELEMENT BEARING IN TURN A SUPPORT, A DYEABLE IMAGE-RECEIVING STRATUM AND A LAYER OF AN ALKAI-PERMEABLE POLYMERIC ULTRAVIOLET LIGHT ABSORBER COMPRISING THE REACTION PRODUCT OF THE COPOLYMERIZATION OF A FIRST MONOMER OF THE FORMULA:
Claim 2
Dependent Claim
98 words
A PHOTOGRAPHIC PRODUCT FOR A COLOR DIFFUSION TRANSFER PROCESS COMPRISING (A) A PHOTOSENSITIVE ELEMENT, INCLUDING A SILVER HALIDE EMULSION, HAVING DISPOSED THEREIN COLOR-PROVIDING SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF DYES AND DYE INTERMEDIATES, SAID COLOR-PROVIDING SUBSTANCES BEING ADAPTED TO FORM AN IMAGEWISE DISTRIBUTION OF MOBILE COLOR-PROVIDING SUBSTANCES AS A FUNCTION OF DEVELOPMENT OF THE SILVER HALIDE EMULSION, (B) AN IMAGE-RECEIVING ELEMENT, SAID IMAGE-RECEIVING ELEMENT BEARING IN TURN A SUPPORT, A DYEABLE IMAGE-RECEIVING STRATUM AND A LAYER OF AN ALKAI-PERMEABLE POLYMERIC ULTRAVIOLET LIGHT ABSORBER COMPRISING THE REACTION PRODUCT OF THE COPOLYMERIZATION OF A FIRST MONOMER OF THE FORMULA:
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |