US3565771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Etching and metal plating silicon containing aluminum alloys
Assignee: Shipley Co Inc
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Filing: 1967-10-16
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Granted: 1971-02-23
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Expires: 1987-10-16
Abstract
Abstract A PROCESS FOR PREPARING AN ALUMINUM ALLOY CONTAINING AT LEAST ABOUT 0.1 PERCENT SILICON FOR FINISHING. THE PROCESS IS CHARACTERIZED BY A TREATMENT THAT DISSOLVES ALUMINUM OUT OF THE SURFACE OF THE ALLOY LEAVING SILICON AND OTHER INSOLUBLE ALLOYING METALS BEHIND AS A VISIBLE, ADHERENT COATING RESISTANT TO OXIDATION AND HIGHLY RECEPTIVE TO FINISHING OPERATIONS SUCH AS ELECTROLESS AND ELECTROLYTIC METAL DEPOSITON.
Inventors
- 👤 Michael Gulla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:37
CPC Classifications
C; C23; C23F; C23F1/00; A; A01; A01D; A01D23/00; A01D23/06; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/1803; C23C18/1824; C23C18/1827; C23C18/1834; C23C18/31; C23C18/32; C23C18/34; C23C18/36; C25; C25D; C25D5/00; C25D5/34; C25D5/42; C25D5/44
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |