US2541329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the remote control of a tunable radio frequency converting system
Assignee: Hartford National Bank and Trust Co
•
Filing: 1946-07-20
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Granted: 1951-02-13
•
Expires: 1966-07-20
Abstract
No abstract record available.
Inventors
- 👤 Boosman Herman Bernard Rudolf
- 👤 Hugenholtz Eduard Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:48
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011953A
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US2152336A
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US2240428A
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US2182352A
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US2186099A
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US2270023A
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GB521710A
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US2320996A
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US2414100A
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US2382203A
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US2394869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |