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US2425523A
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Phenyl and tolyl alpha-acetoxypropionate and process for their preparation
Assignee: Individual
•
Filing: 1943-11-25
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Granted: 1947-08-12
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Expires: 1963-11-25
Abstract
No abstract record available.
Inventors
- 👤 Edward M Filachione
- 👤 Charles H Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C67/00; C07C67/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2258870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |