Patent US3002731A successfully refreshed from Google Patents.
US3002731A
Expired / Lapsed
US
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Apparatus for ultrasonic cleaning
Assignee: Motors Liquidation Co
•
Filing: 1956-11-15
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Granted: 1961-10-03
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Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Gelfand Louis
- 👤 Smith Robert Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:09
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/02; A47L15/13; B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; B08B3/123; A47L2601/00; A47L2601/17
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |