Patent US2756594A successfully refreshed from Google Patents.
US2756594A
Expired / Lapsed
US
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Thermal fluid flow instruments
Assignee: Individual
•
Filing: 1950-12-20
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Granted: 1956-07-31
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Expires: 1970-12-20
Abstract
No abstract record available.
Inventors
- 👤 William D Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:25
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB413619A
Cited
US430271A
Cited
US2282197A
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US1156638A
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US1807376A
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US1766149A
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US1652838A
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US1712692A
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US2022440A
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US2208760A
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US2300418A
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US2349673A
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US2380640A
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US2619566A
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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) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |