Patent US3037834A successfully refreshed from Google Patents.
US3037834A
Expired / Lapsed
US
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Electron discharge device
Assignee: Westinghouse Electric Corp
•
Filing: 1956-07-30
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Granted: 1962-06-05
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Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Lederer
- 👤 Carl F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:25
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/39; C; C03; C03C; C03C27/00; C03C27/06; C03C27/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |