US3345596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygrometer and method of fabrication
Assignee: International Business Machines Corp
•
Filing: 1965-11-08
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Granted: 1967-10-03
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Ronald A Delaney
- 👤 Karl J Puttlitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:30
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06533; G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121; H01B; H01B1/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
IN THE METHOD OF FORMING A HYGROMETER THE STEPS OF: MIXING COBALT OXIDE POWDER WITH AN INERT LIQUID VEHICLE INTO PASTE FORM; APPLYING SAID PASTE TO A DIELECTRIC; FIRING SAID PASTE ON SAID DIELECTRIC AT A TEMPERATURE ABOVE 1350*C., BUT BELOW THE MELTING POINT OF SAID DIELECTRIC TO FORM A HYGROSCOPIC ELEMENT THEREON; AND COOLING SAID ELEMENT TO ROOM TEMPERATURE.
Claim 2
Dependent Claim
60 words
IN THE METHOD OF FORMING A HYGROMETER THE STEPS OF: MIXING COBALT OXIDE POWDER WITH AN INERT LIQUID VEHICLE INTO PASTE FORM; APPLYING SAID PASTE TO A DIELECTRIC; FIRING SAID PASTE ON SAID DIELECTRIC AT A TEMPERATURE ABOVE 1350*C., BUT BELOW THE MELTING POINT OF SAID DIELECTRIC TO FORM A HYGROSCOPIC ELEMENT THEREON; AND COOLING SAID ELEMENT TO ROOM TEMPERATURE.
Claim 3
Dependent Claim
27 words
A HYGROMETER INCLUDING A DIELECTRIC HAVING A HYGROSCOPIC MATERIAL OVERLAY THEREON FORMING A HYGROSCOPIC ELEMENT, SAID OVERLAY COMPRISING FINELY DIVIDED COBALTOUS OXIDE HAVING A CRYSTALLINE ADSORBENT SURFACE.
Claim 4
Dependent Claim
27 words
A HYGROMETER INCLUDING A DIELECTRIC HAVING A HYGROSCOPIC MATERIAL OVERLAY THEREON FORMING A HYGROSCOPIC ELEMENT, SAID OVERLAY COMPRISING FINELY DIVIDED COBALTOUS OXIDE HAVING A CRYSTALLINE ADSORBENT SURFACE.
References Cited (Backward Citations)
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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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |