Patent US3005000A successfully refreshed from Google Patents.
US3005000A
Expired / Lapsed
US
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Beta-chloroethyl diphenylphosphinite and method of producing same
Assignee: STANFFER CHEMICAL Co
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Filing: 1960-07-07
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Granted: 1961-10-17
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Expires: 1980-07-07
Abstract
No abstract record available.
Inventors
- 👤 Robert S Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:49
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/02; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/32; C07F9/3205; C07F9/3229; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5377
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
BETA-CHLOROETHYL DIPHENYLPHOSPHINITE.
Claim 2
Dependent Claim
2 words
BETA-CHLOROETHYL DIPHENYLPHOSPHINITE.
Claim 3
Dependent Claim
29 words
METHOD OF PRODUCING BETA-CHLOROETHYL DIPHENYLPHOSPHINITE WHICH COMPRISES REACTING DIPHENYLPHOSPHINOUS CHLORIDE WITH AT LEAST A STOICHIOMETRIC AMOUNT OF ETHYLENE OXIDE WHILE MAINTAINING THE REACTION TEMPERATURE AT NOT OVER ABOUT 50*C.
Claim 4
Dependent Claim
29 words
METHOD OF PRODUCING BETA-CHLOROETHYL DIPHENYLPHOSPHINITE WHICH COMPRISES REACTING DIPHENYLPHOSPHINOUS CHLORIDE WITH AT LEAST A STOICHIOMETRIC AMOUNT OF ETHYLENE OXIDE WHILE MAINTAINING THE REACTION TEMPERATURE AT NOT OVER ABOUT 50*C.
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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |