US3284201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three layered light-sensitive diazotype material
Assignee: Chemische Fabriek L Van der Grinten NV
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Filing: 1962-12-19
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Granted: 1966-11-08
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Meijs Jan Cornelis
- 👤 Heuts Louis Bernard
- 👤 Dohmen Jozef Maria Martinus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:46
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A HEAT-DEVELOPABLE DIAZOTYPE MATERIAL COMPRISING A SUPPORT CARRYING IN COHERING SUPERPOSED RELATION ON A SIDE THEREOF (A) A LIGHT:SENSITIVE TWO-COMPONENT DIAZOTYPE LAYER CONTAINING A LIGHT-SENSITIVE DIAZO COMPOUND, A AZO COMPONENT CAPABLE OF COUPLING WITH SAID COMPOUND TO FORM AN AZO DYESTUFF AND A SUBSTANCE PREVENTING COUPLING OF SAID COMPONENT WITH SAID COMPOUND, (B) A DEVELOPER LAYER CONTAINING AN AGENT CAPABLE OF REACTING WITH SAID SUBSTANCE TO RENDER IT INCAPABLE OF PREVENTING SAID COUPLING, AND (C) BETWEEN SAID LAYERS A THERMOPLASTIC FILM LAYER HOLDING SAID AGENT INACCESSIBLE TO SAID SUBSTANCE AT NORMAL ATMOSPHERIC TEMPERATURES, SAID AGENT BEING IN LIQUID STATE UPON A HEATING OF SAID AGENT BEING SUFFICIENT TO PYROLYZE SAID DIAZO COMPOUND, AND SAID FILM LAYER UPON SUCH HEATING MELTING AND ADMITTING SAID AGENT IN LIQUID STATE INTO SAID LIGH-SENSITIVE LAYER TO BRING ABOUT SAID COUPLING.
Claim 2
Dependent Claim
136 words
A HEAT-DEVELOPABLE DIAZOTYPE MATERIAL COMPRISING A SUPPORT CARRYING IN COHERING SUPERPOSED RELATION ON A SIDE THEREOF (A) A LIGHT:SENSITIVE TWO-COMPONENT DIAZOTYPE LAYER CONTAINING A LIGHT-SENSITIVE DIAZO COMPOUND, A AZO COMPONENT CAPABLE OF COUPLING WITH SAID COMPOUND TO FORM AN AZO DYESTUFF AND A SUBSTANCE PREVENTING COUPLING OF SAID COMPONENT WITH SAID COMPOUND, (B) A DEVELOPER LAYER CONTAINING AN AGENT CAPABLE OF REACTING WITH SAID SUBSTANCE TO RENDER IT INCAPABLE OF PREVENTING SAID COUPLING, AND (C) BETWEEN SAID LAYERS A THERMOPLASTIC FILM LAYER HOLDING SAID AGENT INACCESSIBLE TO SAID SUBSTANCE AT NORMAL ATMOSPHERIC TEMPERATURES, SAID AGENT BEING IN LIQUID STATE UPON A HEATING OF SAID AGENT BEING SUFFICIENT TO PYROLYZE SAID DIAZO COMPOUND, AND SAID FILM LAYER UPON SUCH HEATING MELTING AND ADMITTING SAID AGENT IN LIQUID STATE INTO SAID LIGH-SENSITIVE LAYER TO BRING ABOUT SAID COUPLING.
References Cited (Backward Citations)
GB815005A
Cited
US3046128A
Cited
US3140180A
Cited
FR1249913A
Cited
FR1255950A
Cited
US3140181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |