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US3519769A
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Liquid level sensing assembly with dual spring probes
Assignee: WARREN G GRIMES
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Filing: 1969-01-14
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Granted: 1970-07-07
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Expires: 1989-01-14
Abstract
No abstract record available.
Inventors
- 👤 Warren G Grimes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:38
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/241; G01F23/242; A; A47; A47J; A47J31/00; A47J31/40; A47J31/402; G05; G05D; G05D9/00; G05D9/12; H; H01; H01R; H01R3/00; H01R3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |