Patent US3560897A successfully refreshed from Google Patents.
US3560897A
Expired / Lapsed
US
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Antenna switch
Assignee: Magnecraft Electric Co
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Filing: 1969-04-17
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Granted: 1971-02-02
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Expires: 1989-04-17
Abstract
Abstract AN ANTENNA SWITCH THAT INCLUDES AN ELECTRO-MAGNETIC RELAY WITHIN A HOUSING. THE RELAY INCLUDES A REED SWITCH THAT HAS CONTACTS SEALED IN A LONGITUDINALLY EXTENDING GLASS CAPSUBE, WITH THE SWITCH LEADS EXTENDING FROM OPPOSITE LONGITUDINAL ENDS OF THE CAPSULE FOR CONNECTION TO THE INNER CONDUCTORS OF COAXIAL CABLES THAT ARE TERMINATED AT THE HOUSING, THE COAXIAL CABLE TERMINATION BEING A PART OF THE HOUSING. A CYLINDRICAL CONDUCTING SHIELD WHICH IS ELECTRICALLY CONNECTED TO THE HOUSING SURROUNDS THE SWITCHING CAPSULE AND IS APPROXIMATELY COAXIAL WITH THE LEADS BETWEEN THE SWITCH TERMINALS.
Inventors
- 👤 Herbert D Steinback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:34
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/281
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |