Patent US2938497A successfully refreshed from Google Patents.
Patent US3285743A successfully refreshed from Google Patents.
US3285743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heterocyclic compounds in admixture with a triphenylmethane leucocyanide dye former system
Assignee: Individual
•
Filing: 1962-03-14
•
Granted: 1966-11-15
•
Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Meyer S Agruss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/732
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PHOTOSENSITIVE PAPER, SENSITIVE TO SHORT WAVE LENGTH RADIATION HAVING A WAVE LENGTH UP TO 3600 ANGSTROM UNITS COMPRISING TRIPHENYLMETHANE LEUCOCYANIDE DYE AND ORGANIC HETEROCYCLIC COMPOUNDS CONTAINCLASS CONSISTING OF LACTONES, LACTAMS, COMPOUNDS CONTAINING AT LEAST ONE EPOXY GROUP, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
41 words
A PHOTOSENSITIVE PAPER, SENSITIVE TO SHORT WAVE LENGTH RADIATION HAVING A WAVE LENGTH UP TO 3600 ANGSTROM UNITS COMPRISING TRIPHENYLMETHANE LEUCOCYANIDE DYE AND ORGANIC HETEROCYCLIC COMPOUNDS CONTAINCLASS CONSISTING OF LACTONES, LACTAMS, COMPOUNDS CONTAINING AT LEAST ONE EPOXY GROUP, AND MIXTURES THEREOF.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |