US2839554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of antimony
Assignee: EIDP Inc
•
Filing: 1953-07-28
•
Granted: 1958-06-17
•
Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 John H Haslam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:21
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/90; C07F9/902; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR THE PREPARATION OF ORGANIC ESTERS OF ANTIMONY WHICH COMPRISES REACTING, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND AT TEMPERATURES RANGING FROM 25-120*C., A HALIDE OF ANTIMONY OF THE TYPE SBXV, WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AND V IS A NUMBER REPRESENTING ONE OF THE TWO NORMAL VALENCES OF ANTIMONY, WITH A HYDROXY COMPOUND AND WHILE SUPPLYING ANHYDROUS AMMONIA TO THE REACTION MIXTURE, SAID HYDROXY COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALCOHOLS, SECONDARY ALCOHOLS AND PHENOLS AND SAID PRIMARY AND SECONDARY ALCOHOLS BEING FURTHER CHARACTERIZED AS HAVING THE CARBON ATOMS NEXT ADJACENT TO THE HYDROXYL BEARING CARBON ATOM FREE OF DOUBLE BONDS.
Claim 2
Dependent Claim
113 words
A PROCESS FOR THE PREPARATION OF ORGANIC ESTERS OF ANTIMONY WHICH COMPRISES REACTING, UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND AT TEMPERATURES RANGING FROM 25-120*C., A HALIDE OF ANTIMONY OF THE TYPE SBXV, WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, AND V IS A NUMBER REPRESENTING ONE OF THE TWO NORMAL VALENCES OF ANTIMONY, WITH A HYDROXY COMPOUND AND WHILE SUPPLYING ANHYDROUS AMMONIA TO THE REACTION MIXTURE, SAID HYDROXY COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALCOHOLS, SECONDARY ALCOHOLS AND PHENOLS AND SAID PRIMARY AND SECONDARY ALCOHOLS BEING FURTHER CHARACTERIZED AS HAVING THE CARBON ATOMS NEXT ADJACENT TO THE HYDROXYL BEARING CARBON ATOM FREE OF DOUBLE BONDS.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |