US3121012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light sensitive triphenylmethane leucocyanide compositions
Assignee: Miehle Goss Dexter Inc
•
Filing: 1960-02-08
•
Granted: 1964-02-11
•
Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 Meyer S Agruss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:58
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/675; G03C1/72; G03C1/73; G03C1/732
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PHOTOSENSITIVE COMPOSITION, SENSITIVE TO ELECTROMAGNETIC RADIATION LOWER THAN 4000 ANGSTROIM UNITS, COMPRISING A LEUCOCYANIDE OF A TRIPHENYLMETHANE DYE, AN ACTIVATOR THERFOR, AND A CHEMICAL COMPOUND WHICH IS INEFFECTIVE TO BRING ABOUT COLORATION OF THE TRIPHENYLMETHANE DYE BUT WHICH, UNDER THE INFLUENCE OF SAID ELECTROMAGNETIC RADIATION, IS CONVERTED TO A DIFFERENT CHEMICAL COMPOUND HAVING A GREATER ADIDITY AND SUFFICIENT TO ENHANCE THE DEVELOPMENT OF COLORATION OF SAID TRIPHENYLMETHANE DYE.
Claim 2
Dependent Claim
69 words
A PHOTOSENSITIVE COMPOSITION, SENSITIVE TO ELECTROMAGNETIC RADIATION LOWER THAN 4000 ANGSTROIM UNITS, COMPRISING A LEUCOCYANIDE OF A TRIPHENYLMETHANE DYE, AN ACTIVATOR THERFOR, AND A CHEMICAL COMPOUND WHICH IS INEFFECTIVE TO BRING ABOUT COLORATION OF THE TRIPHENYLMETHANE DYE BUT WHICH, UNDER THE INFLUENCE OF SAID ELECTROMAGNETIC RADIATION, IS CONVERTED TO A DIFFERENT CHEMICAL COMPOUND HAVING A GREATER ADIDITY AND SUFFICIENT TO ENHANCE THE DEVELOPMENT OF COLORATION OF SAID TRIPHENYLMETHANE DYE.
References Cited (Backward Citations)
US2325038A
Cited
US2304946A
Cited
US2304890A
Cited
US2676887A
Cited
US2844465A
Cited
US2787329A
Cited
US2921407A
Cited
US2855300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |