US2602594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling material and fluid to rotatable drum pulverizers
Assignee: Riley Power Inc
•
Filing: 1946-12-12
•
Granted: 1952-07-08
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Expires: 1966-12-12
Abstract
No abstract record available.
Inventors
- 👤 Hesse Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/18; B02C17/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2316875A
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US2334949A
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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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |