Patent US2235798A successfully refreshed from Google Patents.
Patent US2542279A successfully refreshed from Google Patents.
US2542279A
Expired / Lapsed
US
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Fluid control device
Assignee: Dole Valve Co
•
Filing: 1945-04-06
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Granted: 1951-02-20
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Expires: 1965-04-06
Abstract
No abstract record available.
Inventors
- 👤 Leslie A Kempton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:20
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/08; D06F39/088; A; A47; A47L; A47L15/00; A47L15/42; A47L15/4214; A47L15/4217; D06F37/00; D06F37/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861
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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |