US3341633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of o, o-dihydrocarbyl phosphorodithioic acids with epoxides
Assignee: Lubrizol Corp
•
Filing: 1955-01-27
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Granted: 1967-09-12
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Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Peter A Asseff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:52
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/28; C10M2207/282; C10M2207/34; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/083; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/06; C10M2223/061; C10M2223/065; C10M2227/00; C10M2227/09; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A METHOD FOR THE PREPARATION OF A NEUTRAL PHOSPHORUS- AND SULFUR-CONTAINING COMPOSITION WHICH COMPRISES REACTING, AT A TEMPERATURE BETWEEN ABOUT -60* AND 100*C., A PHOSPHORODITHIOIC ACID HAVING THE GENERAL FORMULA
Claim 2
Independent Claim
30 words
A METHOD FOR THE PREPARATION OF A NEUTRAL PHOSPHORUS- AND SULFUR-CONTAINING COMPOSITION WHICH COMPRISES REACTING, AT A TEMPERATURE BETWEEN ABOUT -60* AND 100*C., A PHOSPHORODITHIOIC ACID HAVING THE GENERAL FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |