US2583614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acylated methine dye compounds
Assignee: Eastman Kodak Co
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Filing: 1950-05-13
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Granted: 1952-01-29
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Expires: 1970-05-13
Abstract
No abstract record available.
Inventors
- 👤 George J Taylor
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:45
CPC Classifications
C; C07; C07C; C07C255/00; C09; C09B; C09B23/00; C09B23/14; C09B23/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHINE DYE COMPOUNDS HAVING THE GENERAL FORMULA: WHEREIN R REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METHYL GROUP, AN ETHYL GROUP, A PROPYL GROUP, A CH3-O-CH2- GROUP OR A CH3CH2-O-CH2-GROUP, R1 REPRESENTS AN ALKYP GROUP HAVING ONE TO THREE, INCLUSIVE, CARBON ATOMS, R2 REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALKYL GROUP HAVING ONE TO FOUR, INCLUSIVE, CARBON ATOMS AND A
Claim 2
Dependent Claim
68 words
THE METHINE DYE COMPOUNDS HAVING THE GENERAL FORMULA: WHEREIN R REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METHYL GROUP, AN ETHYL GROUP, A PROPYL GROUP, A CH3-O-CH2- GROUP OR A CH3CH2-O-CH2-GROUP, R1 REPRESENTS AN ALKYP GROUP HAVING ONE TO THREE, INCLUSIVE, CARBON ATOMS, R2 REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALKYL GROUP HAVING ONE TO FOUR, INCLUSIVE, CARBON ATOMS AND A
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) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |