US2646819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float-controlled valve
Assignee: Cherry Burrell Corp
•
Filing: 1947-10-21
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Granted: 1953-07-28
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Expires: 1967-10-21
Abstract
No abstract record available.
Inventors
- 👤 Adolph J Lippold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:06
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/30; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7433
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US393621A
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US832780A
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US857703A
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US921865A
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US1187773A
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US1522982A
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US1535721A
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US1734586A
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US2210331A
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US2189427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |