Patent US2677005A successfully refreshed from Google Patents.
US2677005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermocouple
Assignee: Sheffield Smelting Co Ltd
•
Filing: 1952-03-31
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Granted: 1954-04-27
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Expires: 1972-03-31
Abstract
No abstract record available.
Inventors
- 👤 Land Thomas
- 👤 Jewell Ronald Colgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:39
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A THERMOCOUPLE COMBINATION HAVIUNG ITS TWO ELEMENTS EACH MADE OF RHODIUM-PLATINUM ALLOY, THE ALLOY OF ONE ELEMENT INCORPORATING BY WEIGHT 20% OF RHODIUM AND 80% OF PLATINUM, AND THE OTHER ALLOY OF THE OTHER ELEMENT INCORPORATING BY WEIGHT 40% OF RHODIUM AND 60% OF PLATINUM.
Claim 2
Dependent Claim
45 words
A THERMOCOUPLE COMBINATION HAVIUNG ITS TWO ELEMENTS EACH MADE OF RHODIUM-PLATINUM ALLOY, THE ALLOY OF ONE ELEMENT INCORPORATING BY WEIGHT 20% OF RHODIUM AND 80% OF PLATINUM, AND THE OTHER ALLOY OF THE OTHER ELEMENT INCORPORATING BY WEIGHT 40% OF RHODIUM AND 60% OF PLATINUM.
References Cited (Backward Citations)
US1789733A
Cited
US2012465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |