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US3287129A Expired / Lapsed US ⏱️ 0.0 years remaining

Light-sensitive photographic elements containing developing agent precursors

Assignee: Eastman Kodak Co
•
Filing: 1963-01-16
•
Granted: 1966-11-22
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Expires: 1983-01-16
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Abstract

No abstract record available.

Inventors

  • 👤 William W Rees
  • 👤 Jr John W Gates

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 17:48
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/703; C07C49/723; C07C49/727; C07C49/737; C07C49/613; C07C49/617; C07C49/623; C07C49/637; C07C49/643; C07C49/657; C07C49/683; C07C49/687; C07C49/693; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/42; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3021; G03C5/315

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 39 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, AND INTEGRAL WITH SAID PHOTOGRAPHIC ELEMENT A WATER-PERMEABLE HYDROPHILIC COLLOID LAYER CONTAINING A COMPOUND SELECTED FROM THE CLASS OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
Claim 2
Dependent Claim 39 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, AND INTEGRAL WITH SAID PHOTOGRAPHIC ELEMENT A WATER-PERMEABLE HYDROPHILIC COLLOID LAYER CONTAINING A COMPOUND SELECTED FROM THE CLASS OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
Claim 3
Dependent Claim 211 words
A PROCESS FOR FORMING A PHOTORESIST COMPRISING EXPOSNG A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER CONTAINING A COMPOUND SELECTED FROM THE CLASS OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULAS: 2-R1,3-R2,5-R3,5,8-(-X-),6-R4,7-R5,8-R6-1,4,4A,5,8,8AHEXAHYDRONAPHTHALENE -1,4-DIONE AND 1,3,6-TRI(R4-),2,4,7-TRI(R5-),5-R3,5,8-(-X-),8-R6-5,8,8A, 9,10,10A-HEXAHYDROANTHRACENE-9,10-DIONE WHEREIN R1 AND R2 REPRESENT A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, AN ALKYL GROUP FROM 1 TO 20 CARBON ATOMS, AN ARYL GROUP, HYDROXY, A SULFONIC ACID GROUP, HALOGEN, AMINO AND A SUBSTITUTED THIO GROUP -S-Y, WHEREIN Y REPRESENTS A MEMBER SELECTED FROM THE CLASS CONSISTING OF AN ISOCYCLIC GROUP AND A HETEROCYCLIC GROUP, WHEREIN R3, R4, R5 AND R6 REPRESENT A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN HALOGEN, AN ARYL GROUP AND A LOWER ALKYL GROUP; X REPRESENTS A MEMBER SELECTED FROM THE CLASS CONSISTING OF A HYDROEN ON EACH OF THE 5 AND 8 CARBON ATOMS, A METHYLENE ATTACHED TO THE 5 AND 8 CARBON ATOMS, AN ETHYLENE GROUP ATTACHED TO THE 5 AND 8 CARBON ATOMS AND METHYLENE AND ETHYLENE GROUPS, SAID METHYLENE AND ETHYLENE GROUPS ATTACHED TO THE FIVE AND EIGHT CARBON ATOMS SUBSTITUTED WITH A MEMBER OF THE GROUP SELECTED FROM THE CLASS CONSISTING OF A HALOGEN, AN ARYL GROUP, AND LOWER ALKYL GROUPS, DEVELOPING IN AN ALKALINE BATH, AND REMOVING THE UNTANNED AREAS IN WARM WATER.
Claim 4
Dependent Claim 211 words
A PROCESS FOR FORMING A PHOTORESIST COMPRISING EXPOSNG A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER CONTAINING A COMPOUND SELECTED FROM THE CLASS OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULAS: 2-R1,3-R2,5-R3,5,8-(-X-),6-R4,7-R5,8-R6-1,4,4A,5,8,8AHEXAHYDRONAPHTHALENE -1,4-DIONE AND 1,3,6-TRI(R4-),2,4,7-TRI(R5-),5-R3,5,8-(-X-),8-R6-5,8,8A, 9,10,10A-HEXAHYDROANTHRACENE-9,10-DIONE WHEREIN R1 AND R2 REPRESENT A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, AN ALKYL GROUP FROM 1 TO 20 CARBON ATOMS, AN ARYL GROUP, HYDROXY, A SULFONIC ACID GROUP, HALOGEN, AMINO AND A SUBSTITUTED THIO GROUP -S-Y, WHEREIN Y REPRESENTS A MEMBER SELECTED FROM THE CLASS CONSISTING OF AN ISOCYCLIC GROUP AND A HETEROCYCLIC GROUP, WHEREIN R3, R4, R5 AND R6 REPRESENT A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN HALOGEN, AN ARYL GROUP AND A LOWER ALKYL GROUP; X REPRESENTS A MEMBER SELECTED FROM THE CLASS CONSISTING OF A HYDROEN ON EACH OF THE 5 AND 8 CARBON ATOMS, A METHYLENE ATTACHED TO THE 5 AND 8 CARBON ATOMS, AN ETHYLENE GROUP ATTACHED TO THE 5 AND 8 CARBON ATOMS AND METHYLENE AND ETHYLENE GROUPS, SAID METHYLENE AND ETHYLENE GROUPS ATTACHED TO THE FIVE AND EIGHT CARBON ATOMS SUBSTITUTED WITH A MEMBER OF THE GROUP SELECTED FROM THE CLASS CONSISTING OF A HALOGEN, AN ARYL GROUP, AND LOWER ALKYL GROUPS, DEVELOPING IN AN ALKALINE BATH, AND REMOVING THE UNTANNED AREAS IN WARM WATER.

References Cited (Backward Citations)

CA624219A Cited
US2206126A Cited
US2592368A Cited
US2716059A Cited
US2892710A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-11-21 1970-05-23 1970-11-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-11-21 1974-05-23 1974-11-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-11-21 1978-05-23 1978-11-22 $7700.00 Window Closed / Lapsed

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