US3563808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature measuring means for enamel devices
Assignee: Pfaudler GmbH
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Filing: 1968-01-17
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Granted: 1971-02-16
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Expires: 1988-01-17
Abstract
Abstract A THERMOCOUPLE IS PLACED ON TOP OF A PRE-ENAMELLED LAYER, FOR EXAMPLE FORMING THE INSIDE OF A CHEMICAL REACTION VESSEL, AND ANOTHER LAYER OF ENAMEL IS APPLIED THEREOVER, FIRED AND FUSED, SO THAT THE THERMOCOUPLE IS EMBEDDED WITHIN THE ENAMEL LAYER; AS AN ALTERNATIVE, THE THERMOCOUPLE JUNCTION MAY PROJECT SLIGHTLY BEYOND THE ENAMEL LAYER, IF IT IS OF A MATERIAL WHICH IS NON-REACTIVE WITH THE SUBSTANCES THE TEMPERATURE OF WHICH IS TO BE SENSED.
Inventors
- 👤 Heinz Scharbach
- 👤 Rudi Horsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:16
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |