US3161771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated radiometer system
Assignee: Barnes Engineering Co
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Filing: 1962-01-19
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Granted: 1964-12-15
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Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
- 👤 Nelson E Engborg
- 👤 Schwarz Frank
- 👤 Mark G Lowenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; G01J5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A RADIOMETER COMPRISING IN COMBINATION, (A) A FIRST RADIATION DETECTOR HAVING A NONLINEAR CHANGE OF RESPONSE WITH TEMPERATURE, (B) AMPLIFYING CIRCUITS OF VARIABLE GAIN, (C) A SECOND DETECTOR AT AMBIENT TEMPERATURE HAVING SUBSTANTIALLY THE SAME VARIATION WITH TEMPERATURE AS THE FIRST DETECTOR AND CONNECTED TO ACTUATE THE AMPLIFIER GAIN VARIATION TO OPPOSE AUTOMATICALLY THAT OF THE FIRST DETECTOR WHEREBY AN OUTPUT IS PRODUCED INVARIANT WITH AMBIENT TEMPERATURE.
Claim 2
Dependent Claim
67 words
A RADIOMETER COMPRISING IN COMBINATION, (A) A FIRST RADIATION DETECTOR HAVING A NONLINEAR CHANGE OF RESPONSE WITH TEMPERATURE, (B) AMPLIFYING CIRCUITS OF VARIABLE GAIN, (C) A SECOND DETECTOR AT AMBIENT TEMPERATURE HAVING SUBSTANTIALLY THE SAME VARIATION WITH TEMPERATURE AS THE FIRST DETECTOR AND CONNECTED TO ACTUATE THE AMPLIFIER GAIN VARIATION TO OPPOSE AUTOMATICALLY THAT OF THE FIRST DETECTOR WHEREBY AN OUTPUT IS PRODUCED INVARIANT WITH AMBIENT TEMPERATURE.
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) | 1967-12-15 | 1968-06-15 | 1968-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-15 | 1972-06-15 | 1972-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-15 | 1976-06-15 | 1976-12-15 | $7700.00 | Window Closed / Lapsed |