US3564918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flowmeter
Assignee: Atomic Power Development Associates Inc
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Filing: 1967-12-27
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Granted: 1971-02-23
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Expires: 1987-12-27
Abstract
Abstract A FLOWMETER INCLUDING A TURBINE WHEEL DRIVEN BY THE FLOWING FLUID, A SOUND GENERATOR DRIVEN BY THE TURBINE WHEEL FOR TRANSMITTING SOUND WAVES RESPONSIVE TO THE SPEED OF THE TURBINE WHEEL, AND REMOTELY DISPOSED SOUND PICKUP APPARATUS FOR RECEIVING AND COUNTING THE SOUNDS EMITTED FROM THE SOUND GENERATOR.
Inventors
- 👤 Michael A Ziniuk
- 👤 Jack J Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:39
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |