Patent US2970068A successfully refreshed from Google Patents.
US2970068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a composite stock
Assignee: Union Carbide Corp
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Filing: 1955-03-07
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Granted: 1961-01-31
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Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Folsom E Drummond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:30
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/02; C23C16/0227; C23C2/00; C23C2/003; C23C2/0038; C23C2/02; C23C2/022; C23C2/024; C23C2/026; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/934; Y10S428/936; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12708; Y10T428/12722; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD OF BONDING ALUMINUM METAL TO THE SURFACE OF TIN METAL TO WHICH ALUMINUM METAL DOES NOT FIRMLY ADHERE, SAID METHOD CONSISTING IN CLEANING SAID TIN METAL SURFACE, HEATING THE CLEANED TIN METAL, AND CONTACTING THE SAME WHILE HEATED WITH A GASEOUS HEATDECOMPOSABLE METAL BEARING COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON, CHROMIUM AND COPPER, THE TEMPERATURE OF SAID TIN METAL SURFACE BEING HIGH ENOUGH TO CAUSE DECOMPOSITION OF SAID METAL BEARING COMPOUND AND DEPOSITION OF A METAL LAYER ON SAID TIN METAL TO PROVIDE AN INTERMEDIATE METAL LAYER TO WHICH ALUMINUM METAL BONDS, AND THEREAFTER GAS PLATING ALUMINUM METAL ON SAID INTERMEDIATE METAL LAYER TO PRODUCE A COMPOSITE METAL BODY.
Claim 2
Independent Claim
117 words
A METHOD OF BONDING ALUMINUM METAL TO THE SURFACE OF TIN METAL TO WHICH ALUMINUM METAL DOES NOT FIRMLY ADHERE, SAID METHOD CONSISTING IN CLEANING SAID TIN METAL SURFACE, HEATING THE CLEANED TIN METAL, AND CONTACTING THE SAME WHILE HEATED WITH A GASEOUS HEATDECOMPOSABLE METAL BEARING COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON, CHROMIUM AND COPPER, THE TEMPERATURE OF SAID TIN METAL SURFACE BEING HIGH ENOUGH TO CAUSE DECOMPOSITION OF SAID METAL BEARING COMPOUND AND DEPOSITION OF A METAL LAYER ON SAID TIN METAL TO PROVIDE AN INTERMEDIATE METAL LAYER TO WHICH ALUMINUM METAL BONDS, AND THEREAFTER GAS PLATING ALUMINUM METAL ON SAID INTERMEDIATE METAL LAYER TO PRODUCE A COMPOSITE METAL BODY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |