US2682374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inclined axis rotary hammer and screen disintegrator with plural discharge structures
Assignee: Rietz Manufacturing Co
•
Filing: 1950-04-15
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Granted: 1954-06-29
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Expires: 1970-04-15
Abstract
No abstract record available.
Inventors
- 👤 Carl A Rietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:36
CPC Classifications
B; B02; B02C; B02C13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE307979C
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US1977771A
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US2273405A
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US2325426A
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US2421014A
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US2545159A
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US2501911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |