US2685602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkene phosphonous dichlorides and methods of making the same
Assignee: Victor Chemical Works
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Filing: 1953-03-19
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Granted: 1954-08-03
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Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Willard H Woodstock
- 👤 Edward N Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:48
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
64 words
THE METHOD OF MAKING AN ALPHA, BETA UNSATURATED ALKENE PHOSPHONOUS DICHLORIDE WHICH COMPRISES REDUCING THE REACTION PRODUCT OF PCL5 AND AN OLEFIN OF THE FORMULA RR''C=CH2, WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, ALKYL AND ARYL, AND R'' IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARYL, WITH ELEMENTAL PHOSPHOROUS IN THE PRESENCE OF CATALYTIC AMOUNTS OF IODINE.
Claim 2
Independent Claim
64 words
THE METHOD OF MAKING AN ALPHA, BETA UNSATURATED ALKENE PHOSPHONOUS DICHLORIDE WHICH COMPRISES REDUCING THE REACTION PRODUCT OF PCL5 AND AN OLEFIN OF THE FORMULA RR''C=CH2, WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, ALKYL AND ARYL, AND R'' IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARYL, WITH ELEMENTAL PHOSPHOROUS IN THE PRESENCE OF CATALYTIC AMOUNTS OF IODINE.
Claim 3
Dependent Claim
42 words
AS A NEW COMPOUND, AN ALPHA, BETA UNSATURATED ALKENE PHOSPHONOUS DICHLORIDE HAVING THE FORMULA RR''C=CHPCL2 WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, ALKYL AND ARYL AND R'' IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARYL.
Claim 4
Dependent Claim
42 words
AS A NEW COMPOUND, AN ALPHA, BETA UNSATURATED ALKENE PHOSPHONOUS DICHLORIDE HAVING THE FORMULA RR''C=CHPCL2 WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN, ALKYL AND ARYL AND R'' IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARYL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |