US3281244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-developable two-component diazotype reproduction material
Assignee: Keuffel and Esser Co
•
Filing: 1963-01-24
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Granted: 1966-10-25
•
Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Endermann Fritz
- 👤 Munder Johannes
- 👤 Ziegler Hellmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:44
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/58; G03C1/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A HEAT-DEVELOPABLE TWO-COMPONENT DIAZOTYPE REPRODUCTION MATERIAL, WHICH COMPRISES A SUPPORT AND A LIGHTSENSITIVE DIAZO LAYER COATED ON SAID SUPPORT, SAID LAYER COMPRISING A LIGHT-SENSITIVE DIIAZONIUM COMPOUND, AN ENOLIC COUPLING COMPONENT, AN HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI HYDROXIDES AND ALKALINE EARTH HYDROXIDES, AND AN ENVELOPE SUBSTSANCE, SAID COUPLING COMPONENT AND SAID HYDROXIDE BEING ENVELOPED TOGETHER IN THE UNREACTED STATE IN ABOUT EQUIVALENT AMOUNTS WITHOUT ANY LIQUID IN SAID SUBSTANCE AND INTIMATELY, UNIFORMLY DISPERSED WITH SIAD DIAZONIUM COMPOUND THROUGHOUT SAID LAYER IN THE FORM OF PARTICLES HAVING A MAXIMUM SIZE OF THIRTY MICRONS, SAID SUBSTANCE MELTING BETWEEN 50*C. AND 200*C., BEING FLUID IN ITS MOLTEN STATE AND PULVERIZABLE AT ROOM TEMPERATURES, AND UNREACTIVE WITH SAID DIAZONIUM COMPOUND.
Claim 2
Dependent Claim
118 words
A HEAT-DEVELOPABLE TWO-COMPONENT DIAZOTYPE REPRODUCTION MATERIAL, WHICH COMPRISES A SUPPORT AND A LIGHTSENSITIVE DIAZO LAYER COATED ON SAID SUPPORT, SAID LAYER COMPRISING A LIGHT-SENSITIVE DIIAZONIUM COMPOUND, AN ENOLIC COUPLING COMPONENT, AN HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI HYDROXIDES AND ALKALINE EARTH HYDROXIDES, AND AN ENVELOPE SUBSTSANCE, SAID COUPLING COMPONENT AND SAID HYDROXIDE BEING ENVELOPED TOGETHER IN THE UNREACTED STATE IN ABOUT EQUIVALENT AMOUNTS WITHOUT ANY LIQUID IN SAID SUBSTANCE AND INTIMATELY, UNIFORMLY DISPERSED WITH SIAD DIAZONIUM COMPOUND THROUGHOUT SAID LAYER IN THE FORM OF PARTICLES HAVING A MAXIMUM SIZE OF THIRTY MICRONS, SAID SUBSTANCE MELTING BETWEEN 50*C. AND 200*C., BEING FLUID IN ITS MOLTEN STATE AND PULVERIZABLE AT ROOM TEMPERATURES, AND UNREACTIVE WITH SAID DIAZONIUM COMPOUND.
References Cited (Backward Citations)
US2846309A
Cited
DE1041980B
Cited
US2939009A
Cited
GB815005A
Cited
US3016308A
Cited
US3111407A
Cited
US3113865A
Cited
US3202510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |