US3083565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dewpoint hygrometer
Assignee: Elsag Bailey Inc
•
Filing: 1958-06-20
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Granted: 1963-04-02
•
Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Alfred P H Jennings
- 👤 Bernard A Worswick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:53
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/66; G01N25/68
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
APPARATUS FOR DETERMINING THE DEWPOINT OF VAPOURCONTAINING GASEOUS FLUID, COMPRISING MEANS FOR OBTAINING AN ELECTRICAL EFFECT HAVING A MAGNITUDE DEPENDENT ON THE RELATIVE HUMIDITY TO A SAMPLE OF THE GASEOUS FLUID, MEANS FOR VARYING THE TEMPERATURE OF THE SAID SMAPLE OPERATIVE AUTOMATICALLY IN DEPENDENCE UPON SAID EFFECT TO REGULATE THE RELATIVE HUMIDITY TO A PREDETERMINED VALUE LESS THAN 100%, MEANS FOR OBTAINING A MEASURE OF THE TEMPERATURE OF THE SAID SAMPLE, AND MEANS FOR DISPLAYING SAID MEASURE OF TEMPERATURE AGAINST A SCALE CALIBRATED WITH REFERENCE TO THE DEWPOINT OF THE GASEOUS FLUID.
References Cited (Backward Citations)
US1708073A
Cited
GB527686A
Cited
US2536111A
Cited
US2763150A
Cited
US2897673A
Cited
US2913902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |