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US2334831A
Expired / Lapsed
US
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Flow control system for washing machines
Assignee: US Hoffman Machinery Corp
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Filing: 1940-07-30
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Granted: 1943-11-23
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Expires: 1960-07-30
Abstract
No abstract record available.
Inventors
- 👤 Henry C A Meyer
- 👤 Erlanger Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:44
CPC Classifications
D; D06; D06F; D06F34/00; D06F34/08; D06F2105/00; D06F2105/02; D06F34/06; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86461
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) | 1946-11-22 | 1947-05-24 | 1947-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-22 | 1951-05-24 | 1951-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-22 | 1955-05-24 | 1955-11-23 | $7700.00 | Window Closed / Lapsed |