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US2474005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-acetoxybenzyl acetylsalicylate
Assignee: National Drug Co
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Filing: 1947-01-14
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Granted: 1949-06-21
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Expires: 1967-01-14
Abstract
No abstract record available.
Inventors
- 👤 Gustav J Martin
- 👤 Urist Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:05
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/76; C07C69/84; C07C69/90
Claims Analysis
Total Claims: 0
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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) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |