US3615059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic drive means for grinding apparatus
Assignee: Individual
•
Filing: 1969-04-14
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Granted: 1971-10-26
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Expires: 1989-04-14
Abstract
Abstract A GRINDING MECHANISM FOR GRINDING VARIOUS MATERIALS AND HAVING A HOPPER DIVIDED INTO TWO PORTIONS. THE HOPPER PORTIONS HAVING SEPARATE MECHANISMS FOR ADVANCING MATERIAL WHEREIN THE UPPER PORTION IS ADVANCED BY A PNEUMATIC TIRE FOR REDUCING NOISE AND INCREASING THE RELIABILITY AND LIFE EXPECTANCEY OF THE APPARATUS AND THE LOWER PORTION USES OSCILLATORY MOTIONS.
Inventors
- 👤 Eugene Charles Moeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:03
CPC Classifications
B; B02; B02C; B02C23/00; B02C23/02; B02C11/00; B02C11/04
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |