Patent US3249935A successfully refreshed from Google Patents.
US3249935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar tracking apparatus
Assignee: Honeywell Inc
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Filing: 1964-03-19
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Granted: 1966-05-03
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Expires: 1984-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert J Follen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:23
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A RADAR ALTIMETER COMPRISING: A TRACK LOOP FOR TRACKING TARGETS, SAID TRACK LOOP HAVING A RELATIVELY NARROW ACQUISITION BANDWIDTH, SAID INCLUDING A RATE INTEGRATOR COMPRISING IN COMBINATION; (A) A HIGH GAIN AMPLIFIER HAVING AN INPUT AN OUTPUT, (B) IMPEDANCE MEANS, AND (C) MEANS CONNECTING SAID IMPEDANCE MEANS TO
Claim 2
Dependent Claim
48 words
A RADAR ALTIMETER COMPRISING: A TRACK LOOP FOR TRACKING TARGETS, SAID TRACK LOOP HAVING A RELATIVELY NARROW ACQUISITION BANDWIDTH, SAID INCLUDING A RATE INTEGRATOR COMPRISING IN COMBINATION; (A) A HIGH GAIN AMPLIFIER HAVING AN INPUT AN OUTPUT, (B) IMPEDANCE MEANS, AND (C) MEANS CONNECTING SAID IMPEDANCE MEANS TO
References Cited (Backward Citations)
US3078457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |