US3064053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphine oxides and preparation thereof
Assignee: Wyeth Holdings LLC
•
Filing: 1960-09-27
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Granted: 1962-11-13
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Expires: 1980-09-27
Abstract
No abstract record available.
Inventors
- 👤 Rabinowitz Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:40
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/53; C07F9/5304; C07F9/5316; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
8 words
NOVEL OLEFINICALLY-UNSATURATED TERTIARY PHOSPHINE OXIDES OF THE FORMULA
Claim 2
Dependent Claim
8 words
NOVEL OLEFINICALLY-UNSATURATED TERTIARY PHOSPHINE OXIDES OF THE FORMULA
Claim 3
Independent Claim
12 words
A METHOD WHICH COMPRISES REACTING A SECONDARY PHOSPHINE HALIDE OF THE FORMULA
Claim 4
Independent Claim
12 words
A METHOD WHICH COMPRISES REACTING A SECONDARY PHOSPHINE HALIDE OF THE FORMULA
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |