US2922071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct-viewing storage tubes
Assignee: Raytheon Co
•
Filing: 1955-06-24
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Granted: 1960-01-19
•
Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 Rudolf C Hergenrother
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:11
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2276359A
Cited
US2438709A
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US2532339A
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US2675499A
Cited
US2547638A
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US2700151A
Cited
US2642550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |