Patent US2067967A successfully refreshed from Google Patents.
US2067967A
Expired / Lapsed
US
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Vacuum tube conductor
Assignee: AEG AG
•
Filing: 1936-03-28
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Granted: 1937-01-19
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Expires: 1956-03-28
Abstract
No abstract record available.
Inventors
- 👤 Kniepen Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/40; Y; Y10; Y10T; Y10T403/00; Y10T403/49
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-01-19 | 1940-07-20 | 1941-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-19 | 1944-07-20 | 1945-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-19 | 1948-07-20 | 1949-01-19 | $7700.00 | Window Closed / Lapsed |