Patent US2741571A successfully refreshed from Google Patents.
US2741571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding metals
Assignee: Individual
•
Filing: 1953-06-19
•
Granted: 1956-04-10
•
Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
- 👤 Carl T Chase
- 👤 Morton J Disckind
- 👤 Marshall D Earle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:23
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/81; H10N10/817
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
IN A THERMOELECTRIC GENERATOR, A METHOD OF CONSTRUCTING A JOINT HAVING GOOD MECHANICAL STRENGTH AND LOW RESISTANCE COMPRISING INTIMATELY UNITING A ZINC-ANTIMONY AND A CONSTANTAN ELEMENT TO FORM A JUNCTION THEREBETWEEN, SPRAYING SAID JUNTION WITH A MOLTEN MATERIAL SELECTED FROM THE GROUP CONSISTING OF CONSTANTAN AND COPPER, SAID SPRAY MATERIAL BEING APPLIED TO SAID JUNCTION AT A TEMPERATURE LOWER THAN THE MELTING POINT OF SAID ZINC-ANTIMONY ELEMENT, AND ANNEALING SAID SPRAYED JUNCTION AT A TEMPERATURE OF ABOUT 350% TO 450* C. FOR SEVERAL DAYS.
References Cited (Backward Citations)
US1412656A
Cited
US2381819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |