Patent US2192321A successfully refreshed from Google Patents.
US2041114A
Expired / Lapsed
US
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Electrical discharge tube circuits
Assignee: Individual
•
Filing: 1934-11-14
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Granted: 1936-05-19
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Expires: 1954-11-14
Abstract
No abstract record available.
Inventors
- 👤 Louis F B Carini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:28
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/10
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) | 1939-05-19 | 1939-11-18 | 1940-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-19 | 1943-11-18 | 1944-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-19 | 1947-11-18 | 1948-05-19 | $7700.00 | Window Closed / Lapsed |