US2503901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control system particularly for use with automatic clotheswashing machines
Assignee: Dole Valve Co
•
Filing: 1943-12-09
•
Granted: 1950-04-11
•
Expires: 1963-12-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Chace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/08; D06F39/088; G; G05; G05B; G05B19/00; G05B19/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/87571; Y10T137/87676; Y10T137/87684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2146929A
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US2197294A
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US2313928A
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US2288141A
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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) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |