US2975634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency-compensated flowmeter system
Assignee: Avien Inc
•
Filing: 1955-08-17
•
Granted: 1961-03-21
•
Expires: 1975-08-17
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:53
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/78; G01F1/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US789110A
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US1152952A
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US2183078A
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US2231702A
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US2361173A
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US2601780A
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US2605638A
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GB717897A
Cited
US2714310A
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US2769337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |