US2735787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for pulverizing solid materials
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:06
CPC Classifications
B; B02; B02C; B02C19/00; B02C21/00; Y; Y10; Y10S; Y10S48/00; Y10S48/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS WHICH COMPRISES PULVERIZING A MASS OF RELATIVELY COARSE PARTICLES OF AT LEAST ONE SOLID DISINTEGRATABLE MATERIAL BY MIXING SAID PARTCLES WITH A VAPORIZABLE LIQUID AND FORMING THEREWITH A FREE-FLOWING SLURRY; PASSING SAID SLURRY INTO AND THROUGH AN INITIAL PORTION OF A TUBE HAVING A SUBSTANTIAL LENGTH COMPARED TO ITS INSIDE DIAMETER; VAPORIZING SAID LIQUID BY HEATING SAID SLURRY DURING PASSAGE THEREOF THROUGH SAID TUBE TO A TEMPERATURE WELL ABOVE THE BOILING POINT OF SAID LIQUID AT THE
Claim 2
Dependent Claim
79 words
A PROCESS WHICH COMPRISES PULVERIZING A MASS OF RELATIVELY COARSE PARTICLES OF AT LEAST ONE SOLID DISINTEGRATABLE MATERIAL BY MIXING SAID PARTCLES WITH A VAPORIZABLE LIQUID AND FORMING THEREWITH A FREE-FLOWING SLURRY; PASSING SAID SLURRY INTO AND THROUGH AN INITIAL PORTION OF A TUBE HAVING A SUBSTANTIAL LENGTH COMPARED TO ITS INSIDE DIAMETER; VAPORIZING SAID LIQUID BY HEATING SAID SLURRY DURING PASSAGE THEREOF THROUGH SAID TUBE TO A TEMPERATURE WELL ABOVE THE BOILING POINT OF SAID LIQUID AT THE
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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) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |