US3158831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater acoustic intensity meter
Assignee: Individual
•
Filing: 1961-05-31
•
Granted: 1964-11-24
•
Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 George L Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:33
CPC Classifications
G; G01; G01H; G01H3/00; G01H3/10; G01H3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN UNDERWATER ACOUSTIC INTENSITY METER COMPRISING A STIFFNESS CONTROLLED ACCELEROMETER HAVING AN OUTPUT INTEGRATING MEANS CONNECTED TO SAID ACCELEROMETER, A PRESSURE SENSITIVE HYDROPHONE MOUNTED NEAR SAID ACCELEROMETER, AND MEASURING MEANS CONNECTED TO SAID INTEGRATING MEANS AND TO SAID HYDROPHONE FOR MEASURING THE SOUND INTENSITY OVER A WIDE FREQUENCY RANGE.
Claim 2
Dependent Claim
49 words
AN UNDERWATER ACOUSTIC INTENSITY METER COMPRISING A STIFFNESS CONTROLLED ACCELEROMETER HAVING AN OUTPUT INTEGRATING MEANS CONNECTED TO SAID ACCELEROMETER, A PRESSURE SENSITIVE HYDROPHONE MOUNTED NEAR SAID ACCELEROMETER, AND MEASURING MEANS CONNECTED TO SAID INTEGRATING MEANS AND TO SAID HYDROPHONE FOR MEASURING THE SOUND INTENSITY OVER A WIDE FREQUENCY RANGE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |