Patent US2597931A successfully refreshed from Google Patents.
US2597931A
Expired / Lapsed
US
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Washer with rotary liquid agitator
Assignee: Champion Laboratories Inc
•
Filing: 1946-06-06
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Granted: 1952-05-27
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Expires: 1966-06-06
Abstract
No abstract record available.
Inventors
- 👤 Hance Isaac Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:19
CPC Classifications
C; C23; C23G; C23G3/00; B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/102; B08B3/104
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |