Patent US3189451A successfully refreshed from Google Patents.
US3189451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light sensitive reproduction material comprising a colloid containing an aldehyde and a diazotized phenyl amine compound and use thereof
Assignee: Azoplate Corp
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Filing: 1962-03-13
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Granted: 1965-06-15
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Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Reichel Maximilian Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:58
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/0166; G03F7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
LIGHT SENSITIVE MATERIAL COMPRISING A CARRIER AND A COLLOID LAYER, THE LATTER INCLUDING AT LEAST ONE ALDEHYDE AND AT LEAST ONE DIAZO COMPOUND OF AN AMINE HAVING THE FORMULA
Claim 2
Dependent Claim
29 words
LIGHT SENSITIVE MATERIAL COMPRISING A CARRIER AND A COLLOID LAYER, THE LATTER INCLUDING AT LEAST ONE ALDEHYDE AND AT LEAST ONE DIAZO COMPOUND OF AN AMINE HAVING 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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |