Patent US3553900A successfully refreshed from Google Patents.
US3553900A
Expired / Lapsed
US
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Vibratory finishing apparatus and method
Assignee: Sweco Inc
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Filing: 1965-02-23
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Granted: 1971-01-12
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Expires: 1985-02-23
Abstract
Abstract A METHOD OF AND DEVICE FOR FINISHING PARTS USING A FINISHING MEDIA WHREIN A MIXTURE OF PARTS AND MEDIA IS SUBJECTED TO VIBRATION IN A LOWER FINISHING REGION AND IS MOVED UPWARDLY TO A REGION WHERE THE PARTS ARE SEPARATED FROM THE MEDIA AND THE MEDIAL IS RETURNED TO THE LOWER REGION.
Inventors
- 👤 Richard K Mckibben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:19
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/06; B24B31/073
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |