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US3479865A
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Sanitary liquid level measurement device
Assignee: Schneider Electric Systems USA Inc
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Filing: 1968-04-05
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Granted: 1969-11-25
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Expires: 1988-04-05
Abstract
No abstract record available.
Inventors
- 👤 Frederic A Sonnenberg
- 👤 George Devries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:17
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/164; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB280275A
Cited
US2756017A
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US2795348A
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US2964030A
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US3153935A
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US3229527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |