Patent US3218856A successfully refreshed from Google Patents.
US3218856A
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US
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Liquid level control arrangement
Assignee: Individual
•
Filing: 1962-09-17
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Granted: 1965-11-23
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Bossard Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:30
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/26; H01H35/30; F; F17; F17D; F17D5/00; F17D5/02; G; G01; G01F; G01F23/00; G01F23/14; G01F23/18; G01F23/185; F16; F16L; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |