Patent JPS435178B1 successfully refreshed from Google Patents.
Patent US3056935A successfully refreshed from Google Patents.
US3056935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeler element for a humidostat
Assignee: Individual
•
Filing: 1960-09-16
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Granted: 1962-10-02
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Expires: 1980-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jens E G Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN IMPROVED FEELER ELEMENT FOR A HUMIDOSTAT COMPRISING: AN ELECTRICALLY NONCONDUCTING BODY; TWO CORROSION-RESISTANT ELECTRODES MOUNTED AND EXTENDING ON SAID BODY, SAID ELECTRODES BEING SPACED EVENLY APART FOR THE EXTENT OF THE MOUNTING ON SAID BODY; A LAYER OF A COMBINATION OF POLYVINYL ALCOHOL AND AMMONUM CHLORIDE, HAVING A LOW ELECTRICAL RESISTANCE AND A MOISTURE SORPTION REVERSIBLY DEPENDENT ON THE RELATIVE HUMIDITY THEREAROUND, APPLIED TO SAID BODY INTERMEDIATE AND AROUND
Claim 2
Dependent Claim
70 words
AN IMPROVED FEELER ELEMENT FOR A HUMIDOSTAT COMPRISING: AN ELECTRICALLY NONCONDUCTING BODY; TWO CORROSION-RESISTANT ELECTRODES MOUNTED AND EXTENDING ON SAID BODY, SAID ELECTRODES BEING SPACED EVENLY APART FOR THE EXTENT OF THE MOUNTING ON SAID BODY; A LAYER OF A COMBINATION OF POLYVINYL ALCOHOL AND AMMONUM CHLORIDE, HAVING A LOW ELECTRICAL RESISTANCE AND A MOISTURE SORPTION REVERSIBLY DEPENDENT ON THE RELATIVE HUMIDITY THEREAROUND, APPLIED TO SAID BODY INTERMEDIATE AND AROUND
References Cited (Backward Citations)
US1648197A
Cited
US2937524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |