US2845248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-sticking leak-proof valve
Assignee: Winona Tool Manufacturing Co
•
Filing: 1954-09-09
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Granted: 1958-07-29
•
Expires: 1974-09-09
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Fuglie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:18
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0478
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US344172A
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US588415A
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US720012A
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US1760951A
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US2246801A
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US2261535A
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US2649275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |