US2873606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flowmeters particularly for gases
Assignee: Individual
•
Filing: 1956-03-27
•
Granted: 1959-02-17
•
Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Regner A Ekstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:39
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)
US881586A
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US1681762A
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US1712761A
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US2029633A
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US2047854A
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US2359592A
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US2355694A
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GB570191A
Cited
DE808289C
Cited
US2725550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |