Patent US2658016A successfully refreshed from Google Patents.
US2658016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fine aqueous dispersion of sulfur
Assignee: Individual
•
Filing: 1948-08-31
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Granted: 1953-11-03
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Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Brown Laurie Oakley
- 👤 Mckee Tasman Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:47
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD FOR CONTINUOUS PRODUCTION OF FINELY DIVIDED SULFUR AS A CONCENTRATE IN LIQUID HAVING A PARTICLE SIZE AVERAGING LESS THAN ABOUT 5 MICRONS FROM COARSE PARTICLES AVERAGING GREATER THAN 50 MICRONS, COMPRISING CONTINUOUSLY FORMING A THICK SLURRY OF THE COARSE SULFUR SOLIDS IN WATER, MECHANICALLY DISINTEGRATING SAID SLURRY BETWEEN MECHANICALLY WORKING SURFACES OF A MILL DISPOSED WITH A GAP HAVING A CLEARANCE OF FROM ABOUT .03 TO .2 INCH WHEREBY A SUBSTANTIALLY PORTION OF THE PARTICLES ARE BROKEN TO A PARTICLE SIZE OF LESS THAN ABOUT 5 MICRONS, CLASSIFYING THE GROUND SLURRY TO REMOVE A FRACTION HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 5 MICRONS, AND RECYCLING THE LARGER PARTICLE SIZE SLURRY RESIDUE
Claim 2
Independent Claim
115 words
THE METHOD FOR CONTINUOUS PRODUCTION OF FINELY DIVIDED SULFUR AS A CONCENTRATE IN LIQUID HAVING A PARTICLE SIZE AVERAGING LESS THAN ABOUT 5 MICRONS FROM COARSE PARTICLES AVERAGING GREATER THAN 50 MICRONS, COMPRISING CONTINUOUSLY FORMING A THICK SLURRY OF THE COARSE SULFUR SOLIDS IN WATER, MECHANICALLY DISINTEGRATING SAID SLURRY BETWEEN MECHANICALLY WORKING SURFACES OF A MILL DISPOSED WITH A GAP HAVING A CLEARANCE OF FROM ABOUT .03 TO .2 INCH WHEREBY A SUBSTANTIALLY PORTION OF THE PARTICLES ARE BROKEN TO A PARTICLE SIZE OF LESS THAN ABOUT 5 MICRONS, CLASSIFYING THE GROUND SLURRY TO REMOVE A FRACTION HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 5 MICRONS, AND RECYCLING THE LARGER PARTICLE SIZE SLURRY RESIDUE
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) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |