US3085244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iso-contour circuits
Assignee: RCA Corp
•
Filing: 1956-09-05
•
Granted: 1963-04-09
•
Expires: 1976-09-05
Abstract
No abstract record available.
Inventors
- 👤 Kay Norman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:55
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/95; Y; Y02; Y02A; Y02A90/00; Y02A90/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A WEATHER RADAR SYSTEM COMPRISING, IN COMBINATION, MEANS FOR TRANSMITTING RADIO-FREQUENCY PULSES TO TARGETS AND RECEIVING ECHOES FROM SAID TARGETS; AMPLIFIER MEANS INCLUDING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT; MEANS FOR DETECTING SAID ECHOES AND APPLYING SAID DETECTED ECHOES TO SAID INPUT CIRCUIT; MEANS FOR LIMITING THE DETECTED ECHOES AND APPLYING THE LIMITED DETECTED ECHOES TO SAID OUTPUT CIRCUIT IN THE SAME POLARITY AS THE ECHOES APPLIED TO SAID INPUT CIRCUIT; MEANS RESPONSIVE TO CURRENT CONDUCTED BY SAID AMPLIFIER MEANS OF GREATER THAN A PREDETERMINED AMPLITUDE FOR CHANGING THE GAIN THEREOF FROM A VALUE OF SUBSTANTIALLY ZERO GAIN TO A RELATIVELY HIGH VALUE OF GAIN; AND INDICATOR MEANS CONNECTED TO SAID OUTPUT CIRCUIT FOR INDICATING THE RESULTANT SIGNAL AT SAID OUTPUT CIRCUIT.
Claim 2
Dependent Claim
123 words
A WEATHER RADAR SYSTEM COMPRISING, IN COMBINATION, MEANS FOR TRANSMITTING RADIO-FREQUENCY PULSES TO TARGETS AND RECEIVING ECHOES FROM SAID TARGETS; AMPLIFIER MEANS INCLUDING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT; MEANS FOR DETECTING SAID ECHOES AND APPLYING SAID DETECTED ECHOES TO SAID INPUT CIRCUIT; MEANS FOR LIMITING THE DETECTED ECHOES AND APPLYING THE LIMITED DETECTED ECHOES TO SAID OUTPUT CIRCUIT IN THE SAME POLARITY AS THE ECHOES APPLIED TO SAID INPUT CIRCUIT; MEANS RESPONSIVE TO CURRENT CONDUCTED BY SAID AMPLIFIER MEANS OF GREATER THAN A PREDETERMINED AMPLITUDE FOR CHANGING THE GAIN THEREOF FROM A VALUE OF SUBSTANTIALLY ZERO GAIN TO A RELATIVELY HIGH VALUE OF GAIN; AND INDICATOR MEANS CONNECTED TO SAID OUTPUT CIRCUIT FOR INDICATING THE RESULTANT SIGNAL AT SAID OUTPUT CIRCUIT.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |