Patent US2570279A successfully refreshed from Google Patents.
US3283294A
Expired / Lapsed
US
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Apparatus for an electrohydraulic system
Assignee: General Electric Co
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Filing: 1965-03-31
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Granted: 1966-11-01
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Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Edward C Schrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:48
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/157
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
APPARATUS FOR USE WITH A SHOCK WAVE EMITTER OF AN ELECTROHYDRAULIC SYSTEM THAT IS PLACED WITHIN A LIQUID FILLED HOLE IN THE GROUND COMPRISING A FLEXIBLE DIAPHRAGM, ADAPTED TO CONTAIN A FLUID WHOSE PROPERTIES ARE KNOWN, WHICH FLUID AND DIAPHRAGM SURROUND THE EMITTER SO THAT SUBSTANTIALLY ALL SHOCK WAVES EMITTED THEREBY PASS THROUGH THE FLUID AND
Claim 2
Dependent Claim
56 words
APPARATUS FOR USE WITH A SHOCK WAVE EMITTER OF AN ELECTROHYDRAULIC SYSTEM THAT IS PLACED WITHIN A LIQUID FILLED HOLE IN THE GROUND COMPRISING A FLEXIBLE DIAPHRAGM, ADAPTED TO CONTAIN A FLUID WHOSE PROPERTIES ARE KNOWN, WHICH FLUID AND DIAPHRAGM SURROUND THE EMITTER SO THAT SUBSTANTIALLY ALL SHOCK WAVES EMITTED THEREBY PASS THROUGH THE FLUID AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |