Patent US3393446A successfully refreshed from Google Patents.
US3393446A
Expired / Lapsed
US
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Method for joining aluminum to metals
Assignee: US Philips Corp
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Filing: 1966-05-23
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Granted: 1968-07-23
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Expires: 1986-05-23
Abstract
No abstract record available.
Inventors
- 👤 Ray C Hughes
- 👤 Robert L Bronnes
- 👤 Richard C Sweet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:40
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/16; B; B23; B23K; B23K35/00; B23K35/001; B23K35/002; B23K35/22; B23K35/24; B23K35/26; B23K35/262; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/937; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD OF JOINING ALUMINUM TO A SECOND METAL COMPRISING THE STEPS OF DEPOSITING ON THE ALUMINUM BY CATHODIC SPUTTERING A LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF TANTALUM, TITANIUM, AND COLUMBIUM TO FORM WITH SAID FIRST METAL A FIRM BOND THEREWITH, DEPOSITING OVER SAID METAL LAYER SUCCESSIVE LAYERS OF PLATINUM AND GOLD, AND SOLDERING THE SO-COVERED ALUMINUM TO THE SECOND METAL.
Claim 2
Independent Claim
65 words
A METHOD OF JOINING ALUMINUM TO A SECOND METAL COMPRISING THE STEPS OF DEPOSITING ON THE ALUMINUM BY CATHODIC SPUTTERING A LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF TANTALUM, TITANIUM, AND COLUMBIUM TO FORM WITH SAID FIRST METAL A FIRM BOND THEREWITH, DEPOSITING OVER SAID METAL LAYER SUCCESSIVE LAYERS OF PLATINUM AND GOLD, AND SOLDERING THE SO-COVERED ALUMINUM TO THE SECOND METAL.
References Cited (Backward Citations)
GB592733A
Cited
US2973283A
Cited
US3265473A
Cited
US3162512A
Cited
US3218194A
Cited
US3339267A
Cited
US3271285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |