US2484536A
Expired / Lapsed
US
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Meso alkyl mercapto substituted carbocyanines and process for preparing same
Assignee: Gevaert Photo Producten NV
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Filing: 1947-06-13
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Granted: 1949-10-11
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Expires: 1967-06-13
Abstract
No abstract record available.
Inventors
- 👤 Straete Leo Arnold Van De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:57
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/04; C07D215/06; C07D277/00; C07D277/60; C07D277/62; C07D277/64; C07D277/84; C07D293/00; C07D293/10; C07D293/12; C09; C09B; C09B23/00; C09B23/02; C09B23/06; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12
Claims Analysis
Total Claims: 0
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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) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |