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Patent US3573983A successfully refreshed from Google Patents.
US3573983A
Expired / Lapsed
US
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Ultrasonic impact cleaners and methods of cleaning
Assignee: Valeo Engine Cooling Inc
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Filing: 1970-06-01
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Granted: 1971-04-06
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Expires: 1990-06-01
Abstract
Abstract A METHOD FOR CLEANING BY SUBJECTING ARTICLES TO BE CLEANED SIMULATNEOUSLY TO IMPACT AND ULTRASONICALLY AGITATED SOLVENT. AN APPARATUS IS PROVIDED HAVING A WASH TANK CONTAINING SOLVENT, MEANS IN THE TANK ULTRASONICALLY AGITATING THE SOLVENT THEREIN AND MEANS IN THE TANK PERIODICALLY IMPACTING THE ARTICLES TO BE CLEANED WHILE THE SOLVENT IS ULTRASONICALLY AGITATED. D R A W I N G
Inventors
- 👤 John N Antonevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:03
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |