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US2450784A
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Resolution of n-formylisopropylidenepenicillamine
Assignee: THERAPEUTIC RES CORP OF GREAT
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Filing: 1945-06-09
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Granted: 1948-10-05
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Expires: 1965-06-09
Abstract
No abstract record available.
Inventors
- 👤 Duffin Walter Mark
- 👤 Wilkinson Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:46
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/04; C07D277/06
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) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |