Patent US2699293A successfully refreshed from Google Patents.
US2699293A
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US
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Pulverizing mill with novel flywheel means
Assignee: Combustion Engineering Inc
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Filing: 1953-02-11
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Granted: 1955-01-11
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Expires: 1973-02-11
Abstract
No abstract record available.
Inventors
- 👤 Svendsen Konrad Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:14
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/04; B02C15/045; B02C2015/002; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2128
Claims Analysis
Total Claims: 0
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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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |