US2950306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organo-fluorine compounds of phosphorus arsenic and antimony
Assignee: EIDP Inc
•
Filing: 1957-03-07
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Granted: 1960-08-23
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Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Smith William Channing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:23
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/42; C07F9/535; C07F9/54; C07F9/66; C07F9/70; C07F9/90; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/16; C08G65/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
PROCESS FOR PREPARING AT LEAST ONE MEMBER OF THE CLASS CONSISTING OF COMPOUNDS HAVING THE FORMULA RM(O)F2 AND COMPOUND HAVING THE FORMULA RMF4, WHEREIN R IS AN ORGANIC RADICAL FREE OF ZEREWITINOFF HYDROGEN SELECTED FROM THE CLASS CONSISTING OF ALKYL, HALOALKYL, ALKENYL, CYCLOALKYL, HALOCYCLOALKYL, ARYL AND HALOARYL, AND M IS SELECTED FROM THE CLASS CONSISTING OF PHOSPHORUS, ARSENIC, AND ANTIMONY, WHICH COMPRISES REACTING SULFUR TETRAFLUORIDE WITH AN ACID OF THE GENERAL FORMULA RM(O) (OH)2, IN WHICH R AND M HAVE THE SAME SIGNIFICANCE AS ABOVE.
Claim 2
Dependent Claim
85 words
PROCESS FOR PREPARING AT LEAST ONE MEMBER OF THE CLASS CONSISTING OF COMPOUNDS HAVING THE FORMULA RM(O)F2 AND COMPOUND HAVING THE FORMULA RMF4, WHEREIN R IS AN ORGANIC RADICAL FREE OF ZEREWITINOFF HYDROGEN SELECTED FROM THE CLASS CONSISTING OF ALKYL, HALOALKYL, ALKENYL, CYCLOALKYL, HALOCYCLOALKYL, ARYL AND HALOARYL, AND M IS SELECTED FROM THE CLASS CONSISTING OF PHOSPHORUS, ARSENIC, AND ANTIMONY, WHICH COMPRISES REACTING SULFUR TETRAFLUORIDE WITH AN ACID OF THE GENERAL FORMULA RM(O) (OH)2, IN WHICH R AND M HAVE THE SAME SIGNIFICANCE AS ABOVE.
References Cited (Backward Citations)
US1917207A
Cited
US2599375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |