US2624761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicarbamylguanidine salts
Assignee: Wyeth Holdings LLC
•
Filing: 1949-07-13
•
Granted: 1953-01-06
•
Expires: 1969-07-13
Abstract
No abstract record available.
Inventors
- 👤 Donald W Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:44
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/14; C07C277/00; C07C277/08; C07C279/00; C07C279/04; C07C281/00; C07C281/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A MEMBER OF THE GROUP CONSISTING OF DICARBAMYLGUANIDINE, CYCLOHEXYLDICARBAMYLGUANIDINE, AND THE ADDITION SALTS THEREOF WITH OXYGENATED ACIDS HAVING AN IONIZATION CONSTANT OF AT LEAST 10-3.
Claim 2
Dependent Claim
25 words
A MEMBER OF THE GROUP CONSISTING OF DICARBAMYLGUANIDINE, CYCLOHEXYLDICARBAMYLGUANIDINE, AND THE ADDITION SALTS THEREOF WITH OXYGENATED ACIDS HAVING AN IONIZATION CONSTANT OF AT LEAST 10-3.
References Cited (Backward Citations)
US2371100A
Cited
US2481758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |