US2629133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of noncaking finely ground sulfur
Assignee: Mathieson Chemical Corp
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Filing: 1950-06-06
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Granted: 1953-02-24
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Expires: 1970-06-06
Abstract
No abstract record available.
Inventors
- 👤 Morningstar Ralph Eugene
- 👤 George H Whipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:04
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR PRODUCING FINELY GROUND SULFUR OF NON-CAKING CHARACTER WHICH COMPRISES SUSPENDING FINELY GROUND SULFUR IN AN INERT GAS STREAM, MAINTAINING THE SUSPENSION AT A TEMPERATURE IN THE APPROXIMATE RANGE OF THE MELTING POINT OF THE SULFUR TO ABOUT 135* C. FOR A PERIOD OF TIME SUFFICIENT TO EFFECT CONVERSION TO NONCAKING FINELY DIVIDED, SULFUR, COOLING THE SESPENSION TO A TEMPERATURE BELOW THE MELTING POINT, AND SEPARATING THE TREATED SULFUR FROM THE GAS STREAM.
Claim 2
Dependent Claim
75 words
A PROCESS FOR PRODUCING FINELY GROUND SULFUR OF NON-CAKING CHARACTER WHICH COMPRISES SUSPENDING FINELY GROUND SULFUR IN AN INERT GAS STREAM, MAINTAINING THE SUSPENSION AT A TEMPERATURE IN THE APPROXIMATE RANGE OF THE MELTING POINT OF THE SULFUR TO ABOUT 135* C. FOR A PERIOD OF TIME SUFFICIENT TO EFFECT CONVERSION TO NONCAKING FINELY DIVIDED, SULFUR, COOLING THE SESPENSION TO A TEMPERATURE BELOW THE MELTING POINT, AND SEPARATING THE TREATED SULFUR FROM THE GAS STREAM.
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) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |