Patent US2586619A successfully refreshed from Google Patents.
US2586619A
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Float drive mechanism for liquid level indicators
Assignee: S Smith and Sons Ltd
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Filing: 1945-10-26
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Granted: 1952-02-19
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Expires: 1965-10-26
Abstract
No abstract record available.
Inventors
- 👤 Davis Wilfred Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:32
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/48; G01F23/50; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US885059A
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US1664558A
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GB190209724A
Cited
US1070973A
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US1064954A
Cited
GB191409115A
Cited
FR511015A
Cited
DE545660C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |