US2531439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vitamin-enriched product and process of producing same
Assignee: NL Industries Inc
•
Filing: 1946-01-10
•
Granted: 1950-11-28
•
Expires: 1966-01-10
Abstract
No abstract record available.
Inventors
- 👤 John W Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:51
CPC Classifications
A; A23; A23L; A23L33/00; A23L33/10; A23L33/15; A23L7/00; A23L7/10; A23L7/101; A23V; A23V2002/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A COMPOSITION FOR THE TREATMENT OF FOOD PRODUCTS, COMPRISING A MODIFIED CLAY INITIALLY EXHIBITING SUBSTANTIAL BASE-EXCHANGE CAPACITY, IN WHICH THE CLAY CATION HAS BEEN SUBSTANTIALLY REPLACED BY A SUBSTITUTED CATION OF A VITAMIN BY REACTING 10-100 MILLIEQUIVALENTS OF THE VITAMIN WITH 100 GRAMS OF THE CLAY, BUT IN ORDER TO RETAIN SUBSTANTIALLY THE ADHESIVE CHARACTER OF THE CLAY, THE VITAMIN BEING OF A CLASS CONSISTING OF THIAMIN, NIACIN AND RIBOFLAVIN.
Claim 2
Dependent Claim
70 words
A COMPOSITION FOR THE TREATMENT OF FOOD PRODUCTS, COMPRISING A MODIFIED CLAY INITIALLY EXHIBITING SUBSTANTIAL BASE-EXCHANGE CAPACITY, IN WHICH THE CLAY CATION HAS BEEN SUBSTANTIALLY REPLACED BY A SUBSTITUTED CATION OF A VITAMIN BY REACTING 10-100 MILLIEQUIVALENTS OF THE VITAMIN WITH 100 GRAMS OF THE CLAY, BUT IN ORDER TO RETAIN SUBSTANTIALLY THE ADHESIVE CHARACTER OF THE CLAY, THE VITAMIN BEING OF A CLASS CONSISTING OF THIAMIN, NIACIN AND RIBOFLAVIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |