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Patent US2892153A successfully refreshed from Google Patents.
US2892153A
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Method and apparatus for finding faults in a plurality of conductors
Assignee: De Havilland Aircraft of Canada Ltd
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Filing: 1956-03-19
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Granted: 1959-06-23
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Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 Neill Oswald Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/60
Claims Analysis
Total Claims: 0
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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) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |