US2662176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement comprising at least one switch for the control of at least one lead
Assignee: Hartford National Bank and Trust Co
•
Filing: 1948-03-06
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Granted: 1953-12-08
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Expires: 1968-03-06
Abstract
No abstract record available.
Inventors
- 👤 Jonker Johan Lodewijk Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:24
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/525; H01; H01J; H01J31/00; H01J31/02; H01J31/06; H01J43/00; H01J43/02; H01J43/025; H03; H03K; H03K17/00; H03K17/51; H03K17/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245174A
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US2220452A
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US2207356A
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US2215779A
Cited
US2185684A
Cited
US2257795A
Cited
US2489329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |