US2801003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for recovering valuable minerals
Assignee: Individual
•
Filing: 1952-01-16
•
Granted: 1957-07-30
•
Expires: 1972-01-16
Abstract
No abstract record available.
Inventors
- 👤 Robert P Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:36
CPC Classifications
B; B03; B03B; B03B1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR EFFECTING THE RELEASE OF GOLD AND OTHER VALUABLE MINERALS FROM ENCLOSING SEDIMENTARY MATERIALS CONTAINING HYDROPHILIC COLLOIDAL CLAYS, SAILD PROCESS COMLPRISING SCREENING ALLUVIAL MATERIAL TO SEPARATE IT INTO COARSE WASTE, MEDIUM AND FINE SEDIMENTS, CIRCULATING AN AQUEOUS SOLUTION, THE PH VALUE OF WHICH IS APPROXIMATELY IN THE RANGE OF 7 TO 11, AND DURING ITS CIRCULATION SPRAYING THE MATERIAL BEILNG SCREENED BOTH TO WASH SAID MATERIAL AND TO DISPERSE SAID CLAYS, RENDERING THE MEDIUM SEDIMENTS SUBSTANTIALLY FREE OF SAID SOLUTION AND SEPERATING THEM INTO WANTED AND UNWANTED GROUPS, UTILIZING THE CIRCULATING SOLUTION TO CONVEY THE FINE SEDIMENTS FOR FURTHER CLAY DISPERSION, SEPARATING UNMDISPERSED FINE SEDIMENTS FROM SAID SOLUTION BEFORE ITS RE-USE AS A SPRAY, AND SEPARATING SAID UNDISPERSED FINE SEDIMENTS INTO WANTED AND UNWANTED GROUPS.
Claim 2
Dependent Claim
127 words
A PROCESS FOR EFFECTING THE RELEASE OF GOLD AND OTHER VALUABLE MINERALS FROM ENCLOSING SEDIMENTARY MATERIALS CONTAINING HYDROPHILIC COLLOIDAL CLAYS, SAILD PROCESS COMLPRISING SCREENING ALLUVIAL MATERIAL TO SEPARATE IT INTO COARSE WASTE, MEDIUM AND FINE SEDIMENTS, CIRCULATING AN AQUEOUS SOLUTION, THE PH VALUE OF WHICH IS APPROXIMATELY IN THE RANGE OF 7 TO 11, AND DURING ITS CIRCULATION SPRAYING THE MATERIAL BEILNG SCREENED BOTH TO WASH SAID MATERIAL AND TO DISPERSE SAID CLAYS, RENDERING THE MEDIUM SEDIMENTS SUBSTANTIALLY FREE OF SAID SOLUTION AND SEPERATING THEM INTO WANTED AND UNWANTED GROUPS, UTILIZING THE CIRCULATING SOLUTION TO CONVEY THE FINE SEDIMENTS FOR FURTHER CLAY DISPERSION, SEPARATING UNMDISPERSED FINE SEDIMENTS FROM SAID SOLUTION BEFORE ITS RE-USE AS A SPRAY, AND SEPARATING SAID UNDISPERSED FINE SEDIMENTS INTO WANTED AND UNWANTED GROUPS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |