Patent US2965657A successfully refreshed from Google Patents.
US2965657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorated oils
Assignee: JBS USA LLC
•
Filing: 1956-06-04
•
Granted: 1960-12-20
•
Expires: 1976-06-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Findley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:18
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
A METHOD WHICH COMPRISES REACTING A POLYBASIC PHOSPHORUS ACID AND AN EPOXIDIZED FATTY OIL HAVING ACYL RADICALS OF A CARBON CHAIN LENGTH OF 10-22 CARBONS AND AND EXPOXY CONTENT ABOVE ABOUT 2% OXIRANE OXYGEN IN A SOLVENT MEDIUM TO PRODUCE A PHOSPHORUS ACID ESTER OF SAID FATTY OILS.
References Cited (Backward Citations)
US2345734A
Cited
US2386250A
Cited
US2466393A
Cited
US2490748A
Cited
US2723971A
Cited
US2849418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |