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US2765656A
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Pendant vane flow meter
Assignee: Individual
•
Filing: 1952-07-16
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Granted: 1956-10-09
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Expires: 1972-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Parshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:21
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US529191A
Cited
US2032306A
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US868152A
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US1025809A
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US1188175A
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GB342006A
Cited
US2082539A
Cited
US2315185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |