Patent US3072903A successfully refreshed from Google Patents.
US3072903A
Expired / Lapsed
US
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Signal switching apparatus
Assignee: Laboratory For Electronics Inc
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Filing: 1953-06-22
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Granted: 1963-01-08
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Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Maurice A Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:52
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
APPARATUS FOR ASSOCIATION WITH A RADAR HEIGHT-FINDING SYSTEM HAVING A RECEIVING ANTENNA WITH N CONSECUTIVE LOBES AND MEANS FOR DERIVING N CORRESPONDING CONSECUTIVE INTERMEDIATE FREQUENCY SIGNALS IN N CHANNELS RESPECTIVELY COMPRISING, A CHANNEL SELECTOR OPERATIVE FROM SAID N INTERMEDIATE FREQUENCY SIGNALS FOR PROVIDING AN OUTPUT SIGNAL INDICATIVE OF THE CHANNEL INSTANTANEOUSLY CARRYING THE MAXIMUM INTERMEDIATE FREQUENCY SIGNAL, AN INTERMEDIATE FREQUENCY ELECTRONIC SWITCH ENERGIZED BY SAID N INTERMEDIATE FREQUENCY INPUT SIGNALS AND INCLUDING MEANS RESPONSIVE TO SAID CHANNEL SELECTOR OUTPUT SIGNAL FOR PROVIDING AS AN OUTPUT THREE OF SAID INTERMEDIATE FREQUENCY INPUT SIGNALS, ONE OF SAID OUTPUT SIGNALS COMPRISING THE MAXIMUM AND THE REMAINING TWO COMPRISING THE SIGNALS CARRIED IN THE CHANNELS IMMEDIATELY ADJACENT THERETO.
Claim 2
Dependent Claim
114 words
APPARATUS FOR ASSOCIATION WITH A RADAR HEIGHT-FINDING SYSTEM HAVING A RECEIVING ANTENNA WITH N CONSECUTIVE LOBES AND MEANS FOR DERIVING N CORRESPONDING CONSECUTIVE INTERMEDIATE FREQUENCY SIGNALS IN N CHANNELS RESPECTIVELY COMPRISING, A CHANNEL SELECTOR OPERATIVE FROM SAID N INTERMEDIATE FREQUENCY SIGNALS FOR PROVIDING AN OUTPUT SIGNAL INDICATIVE OF THE CHANNEL INSTANTANEOUSLY CARRYING THE MAXIMUM INTERMEDIATE FREQUENCY SIGNAL, AN INTERMEDIATE FREQUENCY ELECTRONIC SWITCH ENERGIZED BY SAID N INTERMEDIATE FREQUENCY INPUT SIGNALS AND INCLUDING MEANS RESPONSIVE TO SAID CHANNEL SELECTOR OUTPUT SIGNAL FOR PROVIDING AS AN OUTPUT THREE OF SAID INTERMEDIATE FREQUENCY INPUT SIGNALS, ONE OF SAID OUTPUT SIGNALS COMPRISING THE MAXIMUM AND THE REMAINING TWO COMPRISING THE SIGNALS CARRIED IN THE CHANNELS IMMEDIATELY ADJACENT THERETO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |