US3567574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for reducing foaming and soda losses in the recovery of fibrous particles from aqueous media
Assignee: UNITED STATES MOVIDYN CORP
•
Filing: 1967-07-26
•
Granted: 1971-03-02
•
Expires: 1987-07-26
Abstract
Abstract COMPOSITIONS AND METHODS FOR IMPROVING RECOVERY OF FIBROUS PARTICLES FROM AQUEOUS MEDIA ARE PROVIDED WHICH EMPLOY BOTH A PRIMARY HYDROPHOBIC MATERIAL, SUCH AS SILICON-COATED SILICA, AND AN ADDITIONAL HYDROPHOBIC MATERIAL, SUCH AS DIMETHYLIDIOCTADECYL AMMONIUM BENTONITE, DISPERSED IN A LOW POLARITY OIL FOR WHICH THE ADDITIONAL HYDROPHOBIC MATERIAL IS NOT A GELLANT. EVEN WITH SOLIDS CONTENTS UP TO 35% BY WEIGHT, THE COMPOSITIONS ARE PUMPABLE LIQUIDS. D R A W I N G
Inventors
- 👤 Leo D Braitberg
- 👤 Donald C Roylance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:58
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/02; Y; Y10; Y10S; Y10S516/00; Y10S516/922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |