US2902446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of preparing alginate suspensions
Assignee: Alginate Industries Ltd
•
Filing: 1955-11-18
•
Granted: 1959-09-01
•
Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Mitchell Ernest Knights
- 👤 Mcdowell Richard Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:09
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A METHOD OF MAKING A STABLE MIXTURE OF A SOLUBLE ALGINATE IN HYDROLYSED PROTEIN FIRE FOAM COMPOUND, CONSISTING IN FIRST MAKING AN INTIAL SUSPENSION OF A SOLUBLE ALGINATE IN A CONCENTRATED HYDROLYSED PROTEIN FIRE FOAM COMPOUND SOLUTION CONTAINING ADEQUATE NONALGINATE REACTIVE METALLIC SALS TO PREVENT DISSOLUTION OF THE ALGINATE, AND THEN MIXING THIS SUSPENSION WITH A SOLUTION OF ALGINATE IN WATER, THE FINAL CONCENTRATION OF SALTS IN THE MIXTURE BEING SUCH THAT THE ALGINATE IS SUBSTANTIALLY INSOLUBLE.
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |