US2777948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blanking circuit for electron multiplier
Assignee: Farnsworth Research Corp
•
Filing: 1951-06-14
•
Granted: 1957-01-15
•
Expires: 1971-06-14
Abstract
No abstract record available.
Inventors
- 👤 Henderson J Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:32
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/257; H01; H01J; H01J43/00; H01J43/04; H01J43/30; H04N5/14; H04N5/16; H04N5/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2181720A
Cited
US2217860A
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US2245119A
Cited
US2369206A
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US2420753A
Cited
US2395102A
Cited
US2492976A
Cited
GB630888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |