US2802894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermocouple
Assignee: Evonik Operations GmbH
•
Filing: 1956-04-30
•
Granted: 1957-08-13
•
Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Schneider Gunther
- 👤 Boettcher Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:26
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08; G01K1/10; H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A THERMOCOUPLE COMPRISING AN IRIDIUM RICH ELEMENT SELECTED FROM THE GROUP CONSISTING OF A PURE IRIDIUM ELEMENT AND IRIDIUM RICH IRIDIUM-RHENIUM ALLOY ELEMENTS CONTAINING AT LEAST 90% OF IRIDIUM JOINED WITH A IRIDIUM.
Claim 2
Dependent Claim
33 words
A THERMOCOUPLE COMPRISING AN IRIDIUM RICH ELEMENT SELECTED FROM THE GROUP CONSISTING OF A PURE IRIDIUM ELEMENT AND IRIDIUM RICH IRIDIUM-RHENIUM ALLOY ELEMENTS CONTAINING AT LEAST 90% OF IRIDIUM JOINED WITH A IRIDIUM.
References Cited (Backward Citations)
GB190657A
Cited
US2012465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |