Patent US4282354A successfully refreshed from Google Patents.
US4282354A
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Electrophoretic migration imaging process
Assignee: Eastman Kodak Co
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Filing: 1979-04-18
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Granted: 1981-08-04
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Expires: 1999-04-18
Abstract
Abstract In general, materials having the structure ##STR1## wherein A represents phenylene, napthylene, anthracenediyl, and dibenzothien-diyl; R 1 and R 2 , which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl; R 1 and R 2 , when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; and alkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, napthalene or anthracene, are useful in electrophoretic migration imaging processes.
Inventors
- 👤 James A. Van Allan
- 👤 Louis J. Rossi
- 👤 Melvin S. Bloom
- 👤 Michael T. Regan
- 👤 Hal E. Wright
- 👤 Joseph Y. Kaukeinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:12
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68; C09; C09B; C09B1/00; C09B23/00; C09B23/0091; C09B23/02; C09B23/04; G; G03; G03G; G03G17/00; G03G17/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
52 words
A material having the following structure: ##STR21## wherein A represents phenylene, naphthylene, anthracenediyl and dibenzothiendiyl; R 1 and R 2 both represent cyano or when taken together represent sufficient atoms to form a substituted or unsubstituted furanylidene and said substituents are selected from the group consisting of cyano, phenyl, nitrophenyl and oxo.
Claim 2
Dependent Claim
52 words
A material having the following structure: ##STR21## wherein A represents phenylene, naphthylene, anthracenediyl and dibenzothiendiyl; R 1 and R 2 both represent cyano or when taken together represent sufficient atoms to form a substituted or unsubstituted furanylidene and said substituents are selected from the group consisting of cyano, phenyl, nitrophenyl and oxo.
Claim 3
Dependent Claim
28 words
A material selected from the group consisting of: 5,5'-(9,10-anthracenediyldimethylidyne)bis[3-cyano-4-phenyl(5H)-furan-2-one 5,5'-(9,10-anthracenediyldimethylidyne)bis[3,4-di(p-nitrophenyl)-(5H)-furan-2-one] 9,10-bis(dicyanoethenyl)anthracene 5,5'-(9,10-anthracenediyldimethylidyne)bis(1,3-diethyl-1,3,5-trihydro-pyrimidine-2,4,6-trione) 2,2'-(9,10-anthracenediyldimethylidyne)bis(indan-1,3-dione) 5,5'-(9,10-anthracenediyldimethylidyne)bis(N-ethyl-2-thioxothiazolidin-4-one) 5,5'-(9,10-anthracenediyldimethylidyne)bis(3-carbamoyl-4-phenyl-furan-2-one) 5-(9-anthracenylmethylidyne)-3-cyano-4-phenyl-furan-5-one 4,4'-(9,10-anth4acenediyldimethylidyne)bis(3-phenyl-isoxazolin-5-one) 4-(9-anthracenylmethylidyne)-3-phenyl-isoxazolin-5-one 5,5'-(9,10-anthracenediyldimethylidyne)bis(2-thioxothiazolidin-4-one) 4,4'-(1,4-phenylenedimethylidyne)bis(3-carbamoyl-1-phenyl pyrazolin-5-one) 2,6-bis(dicyanoethenyl)naphthalene 5,5'-(2,6-naphthalenediyldimethylidyne)bis(3-cyano-4-phenylfuran-2-one) 2,6-bis[β-cyano-β-(p-cyanophenyl)ethenyl]naphthalene 5,5'-(dibenzothien-2,8-diyldimethylidyne)bis(3-cyano-4-phenyl-furan-2-one) 5,5'-(dibenzothien-2,8-diyldimethylidyne)bis[3,4-di(p-nitrophenyl)-furan-2-one] and 5,5'-(dibenzothien-2,8-diyldimethylidyne)bis(3-carbamoyl-4-phenyl-furan-2-one).
Claim 4
Dependent Claim
28 words
A material selected from the group consisting of: 5,5'-(9,10-anthracenediyldimethylidyne)bis[3-cyano-4-phenyl(5H)-furan-2-one 5,5'-(9,10-anthracenediyldimethylidyne)bis[3,4-di(p-nitrophenyl)-(5H)-furan-2-one] 9,10-bis(dicyanoethenyl)anthracene 5,5'-(9,10-anthracenediyldimethylidyne)bis(1,3-diethyl-1,3,5-trihydro-pyrimidine-2,4,6-trione) 2,2'-(9,10-anthracenediyldimethylidyne)bis(indan-1,3-dione) 5,5'-(9,10-anthracenediyldimethylidyne)bis(N-ethyl-2-thioxothiazolidin-4-one) 5,5'-(9,10-anthracenediyldimethylidyne)bis(3-carbamoyl-4-phenyl-furan-2-one) 5-(9-anthracenylmethylidyne)-3-cyano-4-phenyl-furan-5-one 4,4'-(9,10-anth4acenediyldimethylidyne)bis(3-phenyl-isoxazolin-5-one) 4-(9-anthracenylmethylidyne)-3-phenyl-isoxazolin-5-one 5,5'-(9,10-anthracenediyldimethylidyne)bis(2-thioxothiazolidin-4-one) 4,4'-(1,4-phenylenedimethylidyne)bis(3-carbamoyl-1-phenyl pyrazolin-5-one) 2,6-bis(dicyanoethenyl)naphthalene 5,5'-(2,6-naphthalenediyldimethylidyne)bis(3-cyano-4-phenylfuran-2-one) 2,6-bis[β-cyano-β-(p-cyanophenyl)ethenyl]naphthalene 5,5'-(dibenzothien-2,8-diyldimethylidyne)bis(3-cyano-4-phenyl-furan-2-one) 5,5'-(dibenzothien-2,8-diyldimethylidyne)bis[3,4-di(p-nitrophenyl)-furan-2-one] and 5,5'-(dibenzothien-2,8-diyldimethylidyne)bis(3-carbamoyl-4-phenyl-furan-2-one).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |