US3835007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for bonding copper or iron to titanium or tantalum
Assignee: Rhone Progil SA
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Filing: 1972-12-13
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Granted: 1974-09-10
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Expires: 1992-12-13
Abstract
Abstract COPPER OR IRON ARE SECURELY BONDED TO TITANIUM OR TANTALUM SUBSTRATE METAL BY INITIALLY SUBJECTING THE SUBSTRATE METAL TO IONIC BOMBARDMENT IN WHICH THE SUBSTRATE METAL PERFORMS THE ROLE OF A CATHODE AND THEN TO CATHODE SPUTTERING IN WHICH THE SUBSTRATE METAL PERFORMS THE ROLE OF AN ANODE, AND THE COPPER OR IRON THE ROLE OF A CATHODE. THEREAFTER, THE BONDED COPPER OR IRON IS SUPPLEMENTED BY ADDITIONAL DEPOSITS BY CONVENTIONAL MEANS SUCH AS ELECTRODEPOSITION, ETC. SUPERIOR INDUSTRIAL PRODUCTS RESULTING FROM THE PROCESS ARE USEFUL AS ANODES IN ELECTROLYSIS CELLS AND AS HEAT EXCHANGERS.
Inventors
- 👤 A Ferat
- 👤 R Masotti
- 👤 H Chavanel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:30
CPC Classifications
C; C23; C23C; C23C28/00; C23C28/02; C23C28/023; C23C14/00; C23C14/02; C23C14/021
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |