US2636889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified soybean lecithin
Assignee: United States Department of Agriculture
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Filing: 1951-07-24
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Granted: 1953-04-28
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Expires: 1971-07-24
Abstract
No abstract record available.
Inventors
- 👤 Edwin P Jones
- 👤 John C Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:30
CPC Classifications
A; A23; A23J; A23J7/00; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/10; C07F9/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
THE METHOD COMPRISING REACTING SOYBEAN LECITHIN CONTAINING ABOUT 27 TO 35 PERCENT GLYCERIDE OIL AND ABOUT 7 TO 12 PERCENT CARBOHYDRATES WITH ONE OF THE GROUP CONSISTING OF AROMATIC AND ALIPHATIC ISOCYANATES AT TEMPERATURES IN EXCESS OF 50* C. FOR A PERIOD OF TIME AT LEAST UNTIL THE ODOR OF ISOCYANATE DISAPPERS, THE REACTING PROPORTIONS BEING FROM 0.2 MOLE TO 4 MOLES OF ISOCYANATE PER MOLE OF SOYBEAN LECITHIN.
Claim 2
Independent Claim
69 words
THE METHOD COMPRISING REACTING SOYBEAN LECITHIN CONTAINING ABOUT 27 TO 35 PERCENT GLYCERIDE OIL AND ABOUT 7 TO 12 PERCENT CARBOHYDRATES WITH ONE OF THE GROUP CONSISTING OF AROMATIC AND ALIPHATIC ISOCYANATES AT TEMPERATURES IN EXCESS OF 50* C. FOR A PERIOD OF TIME AT LEAST UNTIL THE ODOR OF ISOCYANATE DISAPPERS, THE REACTING PROPORTIONS BEING FROM 0.2 MOLE TO 4 MOLES OF ISOCYANATE PER MOLE OF SOYBEAN LECITHIN.
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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |