Patent US2990281A successfully refreshed from Google Patents.
US2990281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive resinous compositions and photographic elements
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-12-17
•
Granted: 1961-06-27
•
Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 John O Printy
- 👤 Wagner Edward Wangelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:21
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/04; C; C08; C08F; C08F22/00; C08F8/00; C08F8/12; C08F8/14; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053; G03F7/016; G03F7/021; G03F7/0212; G03F7/038; G03F7/0388; C08F2800/00; C08F2800/10; C08F2810/00; C08F2810/30; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S522/00; Y10S522/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PHOTOGRAPHIC COMPOSITION CONSISTING ESSENTIALLY OF A PHOTOSENSITIVE MATERIAL INCORPORATED IN A CARRIER WHICH CONTAINS AS ITS SOLE POLYMER COMPONENT A WATERINSOLUBLE RESINOUS COPOLYMER, SAID PHOTOSENSITIVE MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF LIGHT SENSITIVE DIAZO COMPOUNDS, DICHROMATES, IRON SYSTEMS, IRONSILVER SYSTEMS, SILVER SALTS AND MIXTURES THEREOF, SAID RESINOUS COPOLYMER CONTAINING IN ITS FORMULA BOTH (A) POLYMERIZED MONOMERS SELECTED FROM THE GROUP CONSISTING OF VINYL ESTERS, VINYL ETHERS, ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE AND VINYLIDENE HALIDES, AND (B) AT LEAST ONE POLYMERIZED MONOMER GROUP HAVING A FORMULA OF THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
91 words
A PHOTOGRAPHIC COMPOSITION CONSISTING ESSENTIALLY OF A PHOTOSENSITIVE MATERIAL INCORPORATED IN A CARRIER WHICH CONTAINS AS ITS SOLE POLYMER COMPONENT A WATERINSOLUBLE RESINOUS COPOLYMER, SAID PHOTOSENSITIVE MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF LIGHT SENSITIVE DIAZO COMPOUNDS, DICHROMATES, IRON SYSTEMS, IRONSILVER SYSTEMS, SILVER SALTS AND MIXTURES THEREOF, SAID RESINOUS COPOLYMER CONTAINING IN ITS FORMULA BOTH (A) POLYMERIZED MONOMERS SELECTED FROM THE GROUP CONSISTING OF VINYL ESTERS, VINYL ETHERS, ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE AND VINYLIDENE HALIDES, AND (B) AT LEAST ONE POLYMERIZED MONOMER GROUP HAVING A FORMULA OF THE GROUP CONSISTING OF:
References Cited (Backward Citations)
US1981102A
Cited
GB632174A
Cited
US2616851A
Cited
US2687958A
Cited
US2835656A
Cited
US2719141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |