US3199982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazotype reproduction material
Assignee: Keuffel and Esser Co
•
Filing: 1963-03-19
•
Granted: 1965-08-10
•
Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Kashiwabara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
44 words
A HEAT-DEVELOPABLE DIAZO-TYPE MATERIAL, WHICH COMPRISES: A SUPPORT RESISTANT TO THE SCORCHING EFFECTS OF HEAT AT THE CONDITIONS OF THERMAL DEVELOPMENT; AND A PHOTOSENSITIVE DIAZONIUM COMPOUND, A COUPLER THEREFOR, AND A HEAT-ACTIVATABLE DEVELOPING AGENT COATED ON SAID SUPPORT, SAID AGENT HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
44 words
A HEAT-DEVELOPABLE DIAZO-TYPE MATERIAL, WHICH COMPRISES: A SUPPORT RESISTANT TO THE SCORCHING EFFECTS OF HEAT AT THE CONDITIONS OF THERMAL DEVELOPMENT; AND A PHOTOSENSITIVE DIAZONIUM COMPOUND, A COUPLER THEREFOR, AND A HEAT-ACTIVATABLE DEVELOPING AGENT COATED ON SAID SUPPORT, SAID AGENT HAVING THE GENERAL FORMULA:
Claim 3
Independent Claim
64 words
A METHOD FOR MAKING A DIAZO REPRODUCTION OF AN IMAGE, WHICH COMPRISES THE STEPS OF: EXPOSING A DIAZO SHEET TO IMAGEWISE ACTINIC RADIATION, SAID SHEET COMPRISING A SUPPORT RESISTANT TO THE SCORCHING EFFECTS OF HEAT AT THE CONDITIONS OF THERMAL DEVELOPMENT, AND A PHOTOSENSITIVE DIAZONIUM COMPOUND, A COUPLER THEREFOR, AND A HEAT-ACTIVATABLE DEVELOPING AGENT COATED ON SAID SUPPORT, SAID AGENT HAVING THE GENERAL FORMULA:
Claim 4
Independent Claim
64 words
A METHOD FOR MAKING A DIAZO REPRODUCTION OF AN IMAGE, WHICH COMPRISES THE STEPS OF: EXPOSING A DIAZO SHEET TO IMAGEWISE ACTINIC RADIATION, SAID SHEET COMPRISING A SUPPORT RESISTANT TO THE SCORCHING EFFECTS OF HEAT AT THE CONDITIONS OF THERMAL DEVELOPMENT, AND A PHOTOSENSITIVE DIAZONIUM COMPOUND, A COUPLER THEREFOR, AND A HEAT-ACTIVATABLE DEVELOPING AGENT COATED ON SAID SUPPORT, SAID AGENT HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
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Cited
US3046128A
Cited
FR1249913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |