US2800017A
Expired / Lapsed
US
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Recording device for a plurality of instantaneous flows as a function of a pluralityof flown volumes
Assignee: Institut de Recherches de la Siderurgie Francaise IRSID
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Filing: 1953-01-30
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Granted: 1957-07-23
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Expires: 1973-01-30
Abstract
No abstract record available.
Inventors
- 👤 Ruelland Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:23
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/37; G01F1/377
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US398821A
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US1612117A
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US2085224A
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US2076442A
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US2229195A
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US2371753A
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US2394972A
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US2459689A
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GB612841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |