Patent US4186700A successfully refreshed from Google Patents.
Patent US3264727A successfully refreshed from Google Patents.
US3264727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing an electronic unit
Assignee: Individual
•
Filing: 1963-07-01
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Granted: 1966-08-09
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Charles S Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:30
CPC Classifications
H; H01; H01H; H01H11/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/49117; Y10T29/49204; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD OF PRODUCING AN ELECTRONIC UNIT THAT CONSISTS IN (A) PLACING A PLURALITY OF SUB-ASSEMBLED METAL ELEMENTS, ONE OF WHICH IS A SHEET SOLDER, IN SUCCESSIVE PLANES ABOVE A BASE MEMBER, (B) ALTERNATING ALUMINUM SPACERS BETWEEN THE SUBASSEMBLED METAL ELEMENTS, BETWEEN THE BASE MEMBER AND THE NEXT ADJACENT SUB-ASSEMBLY, AND ABOVE THE OUTMOST SUB-ASSEMBLY, (C) CAUSING TOGETHER THE STACK FORMED BY THE SUBASSEMBLIES, SPACERS AND BASE MEMBER, (D) APPLYING HEAT TO SAID STACK TO MELT THE SHEETS OF SOLDER TO CAUSE THE SAME TO FLOW AROUND ADJACENT PORTIONS OF THE OTHER METAL ELEMENTS, AND (E) BATHING THE STACK IN A SOLUTION OF SODIUM HYDROXIDE UNTIL THE SPACERS BECOME SUFFICIENTLY ERODED BY THE SOLUTION TO DISINTEGRATE INTO A FINE POWDER, SAID METAL ELEMENTS BEING RESISTANT TO EROSION BY SAID SOLUTION.
Claim 2
Independent Claim
130 words
A METHOD OF PRODUCING AN ELECTRONIC UNIT THAT CONSISTS IN (A) PLACING A PLURALITY OF SUB-ASSEMBLED METAL ELEMENTS, ONE OF WHICH IS A SHEET SOLDER, IN SUCCESSIVE PLANES ABOVE A BASE MEMBER, (B) ALTERNATING ALUMINUM SPACERS BETWEEN THE SUBASSEMBLED METAL ELEMENTS, BETWEEN THE BASE MEMBER AND THE NEXT ADJACENT SUB-ASSEMBLY, AND ABOVE THE OUTMOST SUB-ASSEMBLY, (C) CAUSING TOGETHER THE STACK FORMED BY THE SUBASSEMBLIES, SPACERS AND BASE MEMBER, (D) APPLYING HEAT TO SAID STACK TO MELT THE SHEETS OF SOLDER TO CAUSE THE SAME TO FLOW AROUND ADJACENT PORTIONS OF THE OTHER METAL ELEMENTS, AND (E) BATHING THE STACK IN A SOLUTION OF SODIUM HYDROXIDE UNTIL THE SPACERS BECOME SUFFICIENTLY ERODED BY THE SOLUTION TO DISINTEGRATE INTO A FINE POWDER, SAID METAL ELEMENTS BEING RESISTANT TO EROSION BY SAID SOLUTION.
References Cited (Backward Citations)
US2632231A
Cited
US2660682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |