US3690943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of alloying two metals
Assignee: RCA Corp
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Filing: 1970-04-24
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Granted: 1972-09-12
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Expires: 1990-04-24
Abstract
Abstract TWO METALS ARE ALLOWED BY A METHOD WHEREIN THE METALS ARE COATED ON A SURFACE WHICH IS PASSED THROUGH A STANDING WAVE OF A HEAT TRANSFER FLUID TO MELT ONLY THE COATING. UPON COOLING, THE TWO METALS FORM A SOLID ALLOY ON THE SURFACE.
Inventors
- 👤 Francis John Papiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:48
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3494; H05K2203/00; H05K2203/04; H05K2203/043; H05K2203/07; H05K2203/0756; H05K2203/0776; H05K3/02; H05K3/06; H05K3/061; H05K3/062; H05K3/3465; H05K3/3473
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |