US3600470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxy or alkoxy phosphonate compositions and amine salts thereof
Assignee: JBS USA LLC
•
Filing: 1967-10-27
•
Granted: 1971-08-17
•
Expires: 1987-10-27
Abstract
Abstract HYDROXY SUBSTITUTED PHOSPHONATES ARE PRODUCED BY REACTING A HALOHYDRIN WITH AN ALIPHATIC OR AROMATIC PHOSPHITE. AT HIGH TEMPERATURES, AN ACIDIC COMPOUND IS FORMED INSTEAD OF, OR AT LEAST SUBSTANTIALLY IN PLACE OF THE NEUTRAL COMPOND. THE NEUTRAL ESTER OF THE PHOSPHONIC ACID CAN BE SUBJECTED TO EITHER ACIDIC OR BASIC HYDROLYSIS TO FORM THE FREE PHOSPHONIC ACID, WHICH IN TURN CAN REACT WITH ALKYL AMINES OR ALKYLOL AMINES TO FORM EXCELLENT CORROSION INHIBITORS. THE NEUTRAL ESTERS THEMSELVES CAN BE USED AS ADDITIVES FOR EXTREME PRESSURE LUBRICANTS.
Inventors
- 👤 Morton Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:56
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/167; C23F11/1673; C23F11/1676
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |