Patent US2963335A successfully refreshed from Google Patents.
US2963335A
Expired / Lapsed
US
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Direct writing oscillograph
Assignee: Consolidated Electrodynamics Corp
•
Filing: 1957-08-26
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Granted: 1960-12-06
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Expires: 1977-08-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Hall
- 👤 George D Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:45
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB188030A
Cited
US2432303A
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US2692178A
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US2752833A
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US2764693A
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US2798959A
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US2798960A
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US2866903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |