Patent US2931914A successfully refreshed from Google Patents.
US2931914A
Expired / Lapsed
US
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Electron multiplier mosaics
Assignee: TDK Micronas GmbH
•
Filing: 1956-03-06
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Granted: 1960-04-05
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Expires: 1976-03-06
Abstract
No abstract record available.
Inventors
- 👤 Richard K Orthuber
- 👤 Papp George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:10
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J29/00; H01J29/02; H01J29/023; H01J29/10; H01J29/36; H01J29/39; H01J29/395; H01J31/00; H01J31/08; H01J31/50; H01J31/506; H01J9/00; H01J9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2196691A
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US2205207A
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US2267823A
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US2322361A
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US2495697A
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US2765422A
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US2821637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |