US2970068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a composite stock
Assignee: Union Carbide Corp
•
Filing: 1955-03-07
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Granted: 1961-01-31
•
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 13:51
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.
References Cited (Backward Citations)
US1381085A
Cited
US1816388A
Cited
US1637033A
Cited
US1816476A
Cited
US1761850A
Cited
US2303869A
Cited
US2300400A
Cited
US2484118A
Cited
US2490543A
Cited
US2490549A
Cited
US2509117A
Cited
US2473888A
Cited
US2752667A
Cited
US2653879A
Cited
US2619433A
Cited
US2683305A
Cited
US2772985A
Cited
US2766195A
Cited
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 |