Patent US2759017A successfully refreshed from Google Patents.
US2759017A
Expired / Lapsed
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Preparation of guanidino type compounds
Assignee: International Minerals and Chemical Corp
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Filing: 1950-12-20
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Granted: 1956-08-14
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Expires: 1970-12-20
Abstract
No abstract record available.
Inventors
- 👤 Vassel Bruno
- 👤 Rose M Kwapich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:05
CPC Classifications
C; C07; C07C; C07C277/00; C07C277/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR THE PREPARATION OF GUANIDINO TYPE COMPOUNDS WHICH COMPRISES REACTING A MIXTURE CONTAINING AN ALKALI METAL HYDROXIDE IN AN AMOUNT AT LEAST IN MOLAR EXCESS OVER THAT REQUIRED TO NEUTRALIZE THE ACID PORTION OF THE GUANIDINE SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE AND A GUANIDINE SALT IN AN INERT ORGANIC LIQUID MEDIUM IN WHICH THE ALKALI METAL HYDROXIDE IS SUBSTANTIALLY INSOLUBLE WITH AN ALPHA-HALO FATTY ACID SELECTED FROM THE GROUP CONSISTING OF ALPHA-CHLORO AND ALPHA-BROMO FATTY ACIDS, AT A TEMPERATURE BETWEEN ABOUT 0* C. AND ABOUT 60* C. AND RECOVERING GUANIDINO SUBSTITUTED FATTY ACID FROM THE REACTION PRODUCTS.
Claim 2
Dependent Claim
106 words
A PROCESS FOR THE PREPARATION OF GUANIDINO TYPE COMPOUNDS WHICH COMPRISES REACTING A MIXTURE CONTAINING AN ALKALI METAL HYDROXIDE IN AN AMOUNT AT LEAST IN MOLAR EXCESS OVER THAT REQUIRED TO NEUTRALIZE THE ACID PORTION OF THE GUANIDINE SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE AND A GUANIDINE SALT IN AN INERT ORGANIC LIQUID MEDIUM IN WHICH THE ALKALI METAL HYDROXIDE IS SUBSTANTIALLY INSOLUBLE WITH AN ALPHA-HALO FATTY ACID SELECTED FROM THE GROUP CONSISTING OF ALPHA-CHLORO AND ALPHA-BROMO FATTY ACIDS, AT A TEMPERATURE BETWEEN ABOUT 0* C. AND ABOUT 60* C. AND RECOVERING GUANIDINO SUBSTITUTED FATTY ACID FROM THE REACTION PRODUCTS.
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |