US2900268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing hydroxyalkylated cereal flour
Assignee: Individual
•
Filing: 1956-11-15
•
Granted: 1959-08-18
•
Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 John C Rankin
- 👤 Charles L Mehltretter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/08; C08B31/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR PREPARING HYDROXYALKYLATED CEREAL FLOUR WHICH COMPRISES ADMIXING DRY CEREAL FLOUR WITH ABOUT 2 TO 5 PERCENT OF A DRY ALKALINE CATALYST, MIXING THE DRY MIXTURE WITH AN ALKYLENE OXIDE IN A REACTION SYSTEM FREE FROM ANY LIQUID DISPERSING MEDIUM, PERMITTING THE DRY MIXTURE OF CEREAL FLOUR AND ALKALINE CATALYST TO REMAIN IN CONTACT WITH SAID ALKYLENE OXIDE UNTIL SAID CEREAL FLOUR HAS BEEN HYDROXYALKYLATED, AND RECOVERING THE HYDROXYALKYLATED CEREAL FLOUR AS A FREE-FLOWING POWDER.
Claim 2
Dependent Claim
77 words
A PROCESS FOR PREPARING HYDROXYALKYLATED CEREAL FLOUR WHICH COMPRISES ADMIXING DRY CEREAL FLOUR WITH ABOUT 2 TO 5 PERCENT OF A DRY ALKALINE CATALYST, MIXING THE DRY MIXTURE WITH AN ALKYLENE OXIDE IN A REACTION SYSTEM FREE FROM ANY LIQUID DISPERSING MEDIUM, PERMITTING THE DRY MIXTURE OF CEREAL FLOUR AND ALKALINE CATALYST TO REMAIN IN CONTACT WITH SAID ALKYLENE OXIDE UNTIL SAID CEREAL FLOUR HAS BEEN HYDROXYALKYLATED, AND RECOVERING THE HYDROXYALKYLATED CEREAL FLOUR AS A FREE-FLOWING POWDER.
References Cited (Backward Citations)
US2733238A
Cited
GB741742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |