Patent US3823170A successfully refreshed from Google Patents.
US3823170A
Expired / Lapsed
US
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Phosphatides
Assignee: Central Soya Co Inc
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Filing: 1972-12-07
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Granted: 1974-07-09
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Expires: 1992-12-07
Abstract
Abstract MODIFIED LACITHIN PRODUCTS EXHIBITING IMPROVED EMULSIFICATION PROPERTIES ARE DIRECTLY OBTAINED FROM CRUDE VEGETABLE OILS UNDER AN INTEGRATED AND CONTINUOUS PROCESS. THE CRUDE OILS ARE INITIALLY TREATED WITH A SMALL AMOUNT OF AQUEOUS ACID ANHYDRIDE WITH THE RESULTANT ACETYLATED WET GUM BEING PARTITIONED FROM THE CRUDE OIL. THE ACETYLATED WET GUM IS THEN ADMIXED WITH A BASE AND SUBJECTED TO CONTROLLED PROCESS CONDITIONS UNDER ELEVATED DRYING CONDITIONS TO PROVDE A DRY MODIFIED LECITHIN PRODUCT HAVING AN ACID VALUE OF ABOUT 10 TO ABOUT 25.
Inventors
- 👤 P Seaberg
- 👤 L Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:03
CPC Classifications
A; A23; A23J; A23J7/00; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; C07F9/103; C11; C11B; C11B3/00; C11B3/02; C11B3/04
Claims Analysis
Total Claims: 0
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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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |