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US2548231A
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Preparation of acylcarbamyl-guanidines
Assignee: Wyeth Holdings LLC
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Filing: 1949-06-09
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Granted: 1951-04-10
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Expires: 1969-06-09
Abstract
No abstract record available.
Inventors
- 👤 Daniel E Nagy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:51
CPC Classifications
C; C07; C07C; C07C277/00; C07C277/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A METHOD OF PREPARING A MEMBER OF THE GROUP CONSISTING OF AN ACYLCARBAMYLGUANIDINE OF THE FORMULA
Claim 2
Independent Claim
16 words
A METHOD OF PREPARING A MEMBER OF THE GROUP CONSISTING OF AN ACYLCARBAMYLGUANIDINE OF THE FORMULA
References Cited (Backward Citations)
US2397667A
Cited
US2481526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |