Patent US2516736A successfully refreshed from Google Patents.
US2516736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device comprising an electric discharge tube and a siphon arrangement within said tube
Assignee: Hartford National Bank and Trust Co
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Filing: 1948-03-01
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Granted: 1950-07-25
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Expires: 1968-03-01
Abstract
No abstract record available.
Inventors
- 👤 Warmoltz Nicolaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:33
CPC Classifications
H; H01; H01J; H01J13/00; H01J13/02; H01J2893/00; H01J2893/0072; H01J2893/0073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1110575A
Cited
US1101523A
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US1101665A
Cited
US1739443A
Cited
AT110523B
Cited
US1697210A
Cited
US1808517A
Cited
US1971891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |