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US2680055A
Expired / Lapsed
US
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High-speed drum camera for oscillo
Assignee: —
•
Filing: —
•
Granted: 1954-06-01
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Expires: 1971-06-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
G; G03; G03B; G03B39/00; G03B39/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2551597A
Cited
US2189583A
Cited
US2286229A
Cited
US2483147A
Cited
US2420719A
Cited
US2487506A
Cited
US2504362A
Cited
US2639210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |