US2654779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparation of guanidino fatty acids
Assignee: International Minerals and Chemical Corp
•
Filing: 1950-12-23
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Granted: 1953-10-06
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Expires: 1970-12-23
Abstract
No abstract record available.
Inventors
- 👤 Vassel Bruno
- 👤 Garst Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:12
CPC Classifications
C; C07; C07C; C07C277/00; C07C277/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS FOR THE PREPARATION OF GUANIDINOTYPE COMPOUNDS WHICH COMPRISES DISSOLVING AN ALPHA AMINO FATTY ACID INTO A SOLUTION OF A CYANAMIDE, ADJUSTING THE PH OF THE SOLUTION WITH HYDROXYL IONS BEFORE HEATING TO EXCEED 9.0, HEATING THE MIXTURE, AND CRYSTALLIZING THE REACTION PRODUCT FROM THE SOLUTION MIXTURE.
Claim 2
Dependent Claim
48 words
A PROCESS FOR THE PREPARATION OF GUANIDINOTYPE COMPOUNDS WHICH COMPRISES DISSOLVING AN ALPHA AMINO FATTY ACID INTO A SOLUTION OF A CYANAMIDE, ADJUSTING THE PH OF THE SOLUTION WITH HYDROXYL IONS BEFORE HEATING TO EXCEED 9.0, HEATING THE MIXTURE, AND CRYSTALLIZING THE REACTION PRODUCT FROM THE SOLUTION MIXTURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |