Patent US2067576A successfully refreshed from Google Patents.
US2067576A
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Method and apparatus for operating positive column discharge tubes
Assignee: NEON RES OF CONNECTICUT Inc
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Filing: 1933-06-19
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Granted: 1937-01-12
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Expires: 1953-06-19
Abstract
No abstract record available.
Inventors
- 👤 Waldemar O Mitscherling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:02
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/0431; H01; H01J; H01J61/00; H01J61/02; H01J61/54; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
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) | 1940-01-12 | 1940-07-13 | 1941-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-12 | 1944-07-13 | 1945-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-12 | 1948-07-13 | 1949-01-12 | $7700.00 | Window Closed / Lapsed |