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US2432905A
Expired / Lapsed
US
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N-substituted phthalimides and their synthesis
Assignee: Eli Lilly and Co
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Filing: 1946-07-25
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Granted: 1947-12-16
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Expires: 1966-07-25
Abstract
No abstract record available.
Inventors
- 👤 Morris S Kharasch
- 👤 Charles F Fuchs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:52
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2343198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |