US2832705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving the stability of base metal thermoelements
Assignee: Evonik Operations GmbH
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Filing: 1956-03-16
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Granted: 1958-04-29
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Expires: 1976-03-16
Abstract
No abstract record available.
Inventors
- 👤 Seidl Alois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:02
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/04; H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/854; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESSS FOR INCREASING THE CHEMICAL STABILITY OF BASE METAL WIRES AND RODS EMPLOYED FOR THERMOELECTRIC MEASUREMENT OF TEMPERATURES WHICH COMPRISES APPLYING A THIN COATING OF AN AQUEOUS SOLUTION OF AN ALKALI METAL SILICATE CONTAINING A RELATIVELY SMALL QUANTITY OF AT LEAST ONE WATER SOLUBLE HEAVY METAL SALT TO THE SURFACE THEREOF AND SUBSEQUENTLY HEATING THE COATING TO A TEMPERATURE OVER 200*C. IN A NON-REDUCING ATMOSPHERE UNTIL OXIDES FORMED FROM THE BASE METAL BASE AE TAKEN UP BY SUCH COATING
Claim 2
Dependent Claim
80 words
A PROCESSS FOR INCREASING THE CHEMICAL STABILITY OF BASE METAL WIRES AND RODS EMPLOYED FOR THERMOELECTRIC MEASUREMENT OF TEMPERATURES WHICH COMPRISES APPLYING A THIN COATING OF AN AQUEOUS SOLUTION OF AN ALKALI METAL SILICATE CONTAINING A RELATIVELY SMALL QUANTITY OF AT LEAST ONE WATER SOLUBLE HEAVY METAL SALT TO THE SURFACE THEREOF AND SUBSEQUENTLY HEATING THE COATING TO A TEMPERATURE OVER 200*C. IN A NON-REDUCING ATMOSPHERE UNTIL OXIDES FORMED FROM THE BASE METAL BASE AE TAKEN UP BY SUCH COATING
References Cited (Backward Citations)
US2321658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |