Patent US2321573A successfully refreshed from Google Patents.
US2321573A
Expired / Lapsed
US
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Washing machine
Assignee: Dole Valve Co
•
Filing: 1940-12-23
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Granted: 1943-06-15
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Expires: 1960-12-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Chace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:15
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1393; D; D06; D06F; D06F39/00; D06F39/08; D06F39/088; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/8593; Y10T137/86389; Y10T137/86445
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) | 1946-06-14 | 1946-12-14 | 1947-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-14 | 1950-12-14 | 1951-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-14 | 1954-12-14 | 1955-06-15 | $7700.00 | Window Closed / Lapsed |