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US2805574A
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Wide range flow meter
Assignee: Standard Oil Co
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Filing: 1952-09-22
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Granted: 1957-09-10
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Expires: 1972-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Warren Jackson
- 👤 William E Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:40
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR961641A
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US1249484A
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US1665141A
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US1903713A
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US1958229A
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US2316255A
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US2421222A
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GB631973A
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US2582886A
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US2687646A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |