US3379576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolyte level indicator
Assignee: Motors Liquidation Co
•
Filing: 1965-07-21
•
Granted: 1968-04-23
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Robert C Matter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:49
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/292; G01F23/2921; G01F23/2922; H; H01; H01M; H01M10/00; H01M10/42; H01M10/48; H01M10/488; H01M50/00; H01M50/60; H01M50/609; H01M50/627; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123971A
Cited
US1883971A
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US2487831A
Cited
US2786196A
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US3079037A
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US3228288A
Cited
US3217923A
Cited
US3287173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |