US3570184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary finishing machine having removable screen panels
Assignee: Ultramatic Equipment Co
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Filing: 1969-02-19
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Granted: 1971-03-16
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Expires: 1989-02-19
Abstract
Abstract IN A ROTARY FINISHING MACHINE OF THE TYPE COMPRISING A ROTATABLE BOWL ADAPTED TO CONTAIN A MASS OF ABRASIVE FINISHING MEDIA, A PLURALITY OF REMOVABLE SCREEN PANELS ARE USED TO COVER SCREEN OPENINGS IN THE LATERAL WALL OF THE BOWL. THE SCREEN PANELS MAY BE REMOVED FOR CLEANING. SELECTION IS PERMITTED AMONG SCREEN PANELS HAVING PERFORATIONS OF VARIOUS SIZES ACCORDING TO THE SIZE AND TYPE OF ABRASIVE FINISHING MEDIA TO BE USED IN A GIVEN MACHINE OPERATION.
Inventors
- 👤 Achille K Ferrara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:09
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/003; B08; B08B; B08B7/00; B08B7/02; B24B31/02; B24B31/0224
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |