Patent US2471506A successfully refreshed from Google Patents.
US2471506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray type washing machine for solid objects
Assignee: Individual
•
Filing: 1943-03-22
•
Granted: 1949-05-31
•
Expires: 1963-03-22
Abstract
No abstract record available.
Inventors
- 👤 Wiswall Harry Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
C; C23; C23G; C23G3/00; A; A47; A47L; A47L15/00; A47L15/14; A47L15/16
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) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |