Patent US3361225A successfully refreshed from Google Patents.
US3361225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic testing device
Assignee: North American Aviation Corp
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Filing: 1966-05-31
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Granted: 1968-01-02
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 David R Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:15
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/04; G01N29/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A DEVICE FOR ACOUSTICALLY TESTING THE INTERNAL STRUCTURE OF A MEMBER, COMPRISING IN COMBINATION: AN EXTERNALLY-TOOTHED WHEEL; AND MEANS, COMPRISING A HAND-HELD HANDLE AND MEANS FOR PIVOTALLY MOUNTING SAID WHEEL ON SAID HANDLE, FOR WALKING SAID WHEEL ACROSS THE MEMBER TO BE TESTED, FOR CAUSING THE INDIVIDUAL TEETH OF SAID WHEEL TO SEQUENTIALLY STRIKE SAID MEMBER, FOR PRODUCING INDIVIDUAL SEQUENTIAL ACOUSTICAL SOUNDS INDICATIVE OF THE INTERNAL STRUCTURE OF SAID MEMBER, AN ABNORMAL ACOUSTICAL SOUND BEING INDICATIVE OF AN ABNORMAL INTERNAL STRUCTURE.
Claim 2
Independent Claim
81 words
A DEVICE FOR ACOUSTICALLY TESTING THE INTERNAL STRUCTURE OF A MEMBER, COMPRISING IN COMBINATION: AN EXTERNALLY-TOOTHED WHEEL; AND MEANS, COMPRISING A HAND-HELD HANDLE AND MEANS FOR PIVOTALLY MOUNTING SAID WHEEL ON SAID HANDLE, FOR WALKING SAID WHEEL ACROSS THE MEMBER TO BE TESTED, FOR CAUSING THE INDIVIDUAL TEETH OF SAID WHEEL TO SEQUENTIALLY STRIKE SAID MEMBER, FOR PRODUCING INDIVIDUAL SEQUENTIAL ACOUSTICAL SOUNDS INDICATIVE OF THE INTERNAL STRUCTURE OF SAID MEMBER, AN ABNORMAL ACOUSTICAL SOUND BEING INDICATIVE OF AN ABNORMAL INTERNAL STRUCTURE.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |