US3076008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of phosphorus thioic acids with quinoid compounds
Assignee: Lubrizol Corp
•
Filing: 1956-01-30
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Granted: 1963-01-29
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 George R Norman
- 👤 Suer William M Le
- 👤 Thomas W Mastin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/18; C07F9/28; C07F9/30; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047; C10M2223/06; C10M2223/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
THE ADDITION PRODUCT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIALKYL MONOTHIO AND DIALKYL DITHIO PHOSPHORIC ACID TO THE QUINOID RING OF A QUINONE COMPOUND.
Claim 2
Dependent Claim
67 words
THE PROCESS OF CONVERTING AN ORGANIC PHOSPHORUS THIOIC ACID SELECTED FROM THE CLASS CONSISTING OF PHOSPHORODITHIOIC, PHOSPHOROMONOTHIOIC, AND PHOSPHINODITHIOCI ACID IN WHICH THE ORGANIC GROUPS ARE SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, CYCLOALKYL, ARALKYL, AND ALKARYL RADICALS, TO PRODUCTS OF SUBSTANTIALLY REDUCED ACIDITY WHICH COMPRISES REACTING SUCH AN ACID WITH A QUINOID COMPOUND SELECTED FROM THE CLASS CONSISTING OF QUINONES, ALKYLATED QUINONES, AND CHLORINATED QUINONES.
References Cited (Backward Citations)
US2328570A
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US2301382A
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US2542604A
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US2609376A
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DE937956C
Cited
US2767206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |