Patent US3143569A successfully refreshed from Google Patents.
US3143569A
Expired / Lapsed
US
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Ethylenically unsaturated aromatic phosphorus halides
Assignee: Monsanto Co
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Filing: 1963-09-06
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Granted: 1964-08-04
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Expires: 1983-09-06
Abstract
No abstract record available.
Inventors
- 👤 John G Abramo
- 👤 Earl C Chapin
- 👤 Albert Y Garner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:16
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/42; C07F9/30; C07F9/34; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AN ETHYLENICALLY UNSATURATED AROMATIC PHOSPHORUS ACID HALIDE CORRESPONDING TO THE GENERAL FORMULA:
Claim 2
Dependent Claim
12 words
AN ETHYLENICALLY UNSATURATED AROMATIC PHOSPHORUS ACID HALIDE CORRESPONDING TO THE GENERAL FORMULA:
References Cited (Backward Citations)
US2980721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |