Patent US2632018A successfully refreshed from Google Patents.
US2632018A
Expired / Lapsed
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Halogen-containing phosphorus acids and esters
Assignee: Monsanto Chemicals Ltd
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Filing: 1948-06-22
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Granted: 1953-03-17
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Expires: 1968-06-22
Abstract
No abstract record available.
Inventors
- 👤 Gennady M Kosolapoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:37
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/304; C07F9/38; C07F9/3804; C07F9/3834
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE METHOD OF PREPARING A PHOSPHORUSCONTAINING ORGANIC COMPOUND WHICH COMPRISES REACTING A CHLORINATED, AROMATIC HYDROCARBON WITH PHOSPHORUS TRICHLORIDE AND ALUMINUM CHLORIDE, CHLORINATING SAID MIXTURE WITH ELEMENTAL CHLORINE TO DECOMPOSE COMPLEXEX, AND SEPARATING THE PHOSPHORUS-CONTAINING COMPOUNDS.
Claim 2
Independent Claim
35 words
THE METHOD OF PREPARING A PHOSPHORUSCONTAINING ORGANIC COMPOUND WHICH COMPRISES REACTING A CHLORINATED, AROMATIC HYDROCARBON WITH PHOSPHORUS TRICHLORIDE AND ALUMINUM CHLORIDE, CHLORINATING SAID MIXTURE WITH ELEMENTAL CHLORINE TO DECOMPOSE COMPLEXEX, AND SEPARATING THE PHOSPHORUS-CONTAINING COMPOUNDS.
References Cited (Backward Citations)
US2347633A
Cited
US2453167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |