US3772282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 3-indenecarboxylic acid-1-methine derivatives
Assignee: Eastman Kodak Co
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Filing: 1970-09-14
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Granted: 1973-11-13
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Expires: 1990-09-14
Abstract
Abstract A NOVEL CLASS OF 3-INDENECARBOXYLIC ACID-1-METHINE COMPOUNDS ARE DESCRIBED WHICH CAN BE USED TO DYE TEXTILE FIBERS OR TO PREPARE LIGHT SENSITIVE POLYMERS.
Inventors
- 👤 J Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/04; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/18; C07D277/00; C07D277/60; C07D277/62; C07D277/64; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/54; C09B23/0066; C09B23/0075; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/927
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |