Patent US3562962A successfully refreshed from Google Patents.
US3562962A
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US
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Grinding apparatus
Assignee: Individual
•
Filing: 1969-02-26
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Granted: 1971-02-16
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Expires: 1989-02-26
Abstract
Abstract THIS INVENTION IS A GRINDING APPARATUS WHEREIN ON A REVOLVING DRUM IS MOUNTED A CONTAINER ECCENTRICALLY AT BOTH ENDS ON EACH PARALLEL WITH THE SHAFT OF SAID DRUM SO THAT A FLOW IN THE FORM OF THE FIGURE 8 MAY BE GIVE TO ABRASIVE AND OBJECTS TO BE GROUND CONTAINED IN SAID CONTAINER.
Inventors
- 👤 Ietatsu Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:25
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/02; B24B31/0212; B24B31/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |