US2483416A
Expired / Lapsed
US
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Process for the preparation of beta (heterocyclic-thio) carboxylic acid compounds
Assignee: Goodrich Corp
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Filing: 1945-10-05
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Granted: 1949-10-04
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Expires: 1965-10-05
Abstract
No abstract record available.
Inventors
- 👤 Jansen Jacob Eden
- 👤 Roger A Mathes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:15
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/36; C07D277/08; C07D277/12; C07D277/16; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74; C07D279/00; C07D279/04; C07D279/06
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) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |