US2846494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric devices
Assignee: RCA Corp
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Filing: 1955-11-30
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Granted: 1958-08-05
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Expires: 1975-11-30
Abstract
No abstract record available.
Inventors
- 👤 Nils E Lindenblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:13
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/854
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
A THERMOCOUPLE COMPRISING A POSITIVE ELEMENT COMPOSED OF AN ALLOY OF IRON AND ALUMINUM WITH A RATIO OF 8 ATOMS OF IRON TO 3-7 ATOMS OF ALUMINUM, AND A NEGATIVE ELEMENT COMPOSED OF AN ALLOY OF FROM 78 TO 85.5% BY WEIGHT GOLD, BALANCE NICKEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |