Patent US2236195A successfully refreshed from Google Patents.
US2236195A
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US
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Automatic cathode voltage adjusting device
Assignee: RCA Corp
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Filing: 1938-12-15
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Granted: 1941-03-25
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Expires: 1958-12-15
Abstract
No abstract record available.
Inventors
- 👤 Lewis J Mckesson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:17
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/52; H03F1/54; G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/30; H05G1/34
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) | 1944-03-24 | 1944-09-23 | 1945-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-24 | 1948-09-23 | 1949-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-24 | 1952-09-23 | 1953-03-25 | $7700.00 | Window Closed / Lapsed |