US3216936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing lubricant additives
Assignee: Lubrizol Corp
•
Filing: 1964-03-02
•
Granted: 1965-11-09
•
Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Suer William M Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:23
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C10L10/00; C10L10/04; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/066; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2040/20; C10N2040/25; C10N2040/255; C10N2040/26; Y; Y10; Y10S; Y10S516/00; Y10S516/905; Y10S516/914; Y10S516/915
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
17 words
A PROCESS FOR PREPARING ACYLATED AMINES BY THE REACTION OF AN ALKYLENE AMINE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
8 words
THE PRODUCT OF THE PROCESS OF CLAIM 2.
Claim 3
Dependent Claim
61 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR PROPORTION OF A MINERAL LUBRICATING OIL, FROM ABOUT 0.01% TO ABOUT 0.5% OF PHOSPHORUS AS A GROUP II METAL PHOSPHORODITHIOATE AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE TENDENCY OF SAID COMPOSITION TO DEVELOPE HAZE OR SEDIMENT AT ELEVATED TEMPERATURES DUE TO THE PRESENCE THEREIN OF SAID METAL PHOSPHORODITHIOATE, OF THE PRODUCT OF CLAIM 12.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |