US3195344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dewpoint measuring system
Assignee: Cambridge Systems Inc
•
Filing: 1963-01-28
•
Granted: 1965-07-20
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Charles C Francisco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:52
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/66; G01N25/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF CONTINUOUSLY TRACKING THE DEWPOINT OF A GAS COMPRISING, IN COMBINATION, THE STEPS OF PASSING THE GAS OVER A REFLECTIVE SURFACE, PELTIER EFFECT COOLING OF THE REFLECTIVE SURFACE IN PROPORTIONAL RELATION TO RATE OF AN ELECTRIC COOLING DIRECTION CURRENT, CAUSING SAID PELTIER EFFECT COOLING, ILLUMINATING THE REFLECTIVE SURFACE, DETECTING THE INTENSITY DIFFERENCE BETWEEN DIRECT AND SCATTER REFLECTIONS FROM SAID ILLUMINATED REFLECTIVE SURFACE, AND REDUCING THE RATE OF SAID COOLING DIRECTION CURRENT AND THEREBY THE RATE OF SAID PELTIER EFFECT COOLING OF SAID REFLECTIVE SURFACE IN PROPORTIONAL RELATION TO SAID DETECTED
Claim 2
Independent Claim
92 words
THE METHOD OF CONTINUOUSLY TRACKING THE DEWPOINT OF A GAS COMPRISING, IN COMBINATION, THE STEPS OF PASSING THE GAS OVER A REFLECTIVE SURFACE, PELTIER EFFECT COOLING OF THE REFLECTIVE SURFACE IN PROPORTIONAL RELATION TO RATE OF AN ELECTRIC COOLING DIRECTION CURRENT, CAUSING SAID PELTIER EFFECT COOLING, ILLUMINATING THE REFLECTIVE SURFACE, DETECTING THE INTENSITY DIFFERENCE BETWEEN DIRECT AND SCATTER REFLECTIONS FROM SAID ILLUMINATED REFLECTIVE SURFACE, AND REDUCING THE RATE OF SAID COOLING DIRECTION CURRENT AND THEREBY THE RATE OF SAID PELTIER EFFECT COOLING OF SAID REFLECTIVE SURFACE IN PROPORTIONAL RELATION TO SAID DETECTED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |