Patent US2630274A successfully refreshed from Google Patents.
US2630274A
Expired / Lapsed
US
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Comminuting machine with opposed and axially oscillated rotors
Assignee: Individual
•
Filing: 1949-03-26
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Granted: 1953-03-03
•
Expires: 1969-03-26
Abstract
No abstract record available.
Inventors
- 👤 Edward W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:18
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/10; B02C1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2174471A
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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) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |