US3134006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control system
Assignee: North American Aviation Corp
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Filing: 1960-10-03
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Granted: 1964-05-19
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Adrian K Dorsman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1927; G05D23/193; G05D23/1932; G05D23/1934
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A TEMPERATURE CONTROL SYSTEM COMPRISING AN A.-C. EXCITED TEMPERATURE SENSITIVE BRIDGE, AN AMPLIFIER RESPONSIVE TO SAID BRIDGE, A PHASE-SENSITIVE DEMODULATOR RESPONSIVE TO SAID AMPLIFIER, PULSE WIDTH MODULATING MEANS RESPONSIVE TO SAID DEMODULATOR FOR GENERATING OUTPUT PULSES HAVING A WIDTH LINEARLY RELATED TO THE OUTPUT OF SAID DEMODULATOR, A POWER AMPLIFIER CONNECTED TO BE ENERGIZED BY SAID PULSES, WHEREBY THE POWER OUTPUT OF SAID POWER AMPLIFIER IS A LINEAR FUNCTION OF TEMPERATURE VARIATION
References Cited (Backward Citations)
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Cited
US2843714A
Cited
US2998195A
Cited
US2957111A
Cited
US2994840A
Cited
US2944137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |