Patent US2933302A successfully refreshed from Google Patents.
US2933302A
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US
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Electronic load indicator
Assignee: KEN STANDARD CORP
•
Filing: 1955-07-25
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Granted: 1960-04-19
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Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Cordell Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:20
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/18; G01G23/20; G01G23/26; G01G19/00; G01G19/08; G01G23/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1621093A
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US1883476A
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US2034520A
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US1979297A
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US2161698A
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US2206793A
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US2314883A
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US2437608A
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US2506585A
Cited
US2792209A
Cited
US2687293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |