Patent US2869357A successfully refreshed from Google Patents.
US2869357A
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US
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Continuously indicating electroacoustic densitometer
Assignee: Individual
•
Filing: 1954-06-17
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Granted: 1959-01-20
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Expires: 1974-06-17
Abstract
No abstract record available.
Inventors
- 👤 Kritz Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/44; G01N29/4409; G01N29/4427; G01N29/02; G01N29/032; G01N29/34; G01N29/348; G01N9/00; G01N9/24; G01N2291/00; G01N2291/01; G01N2291/011; G01N2291/02; G01N2291/028; G01N2291/02818; G01N2291/04; G01N2291/056; G01N2291/10; G01N2291/102; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1915368A
Cited
US1881543A
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US1975812A
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US2273934A
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US2283750A
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US2568277A
Cited
US2483829A
Cited
US2669121A
Cited
US2711646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |