US3758314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous bath for chemical deposition of ductile copper coatings
Assignee: Bayer Pharma AG
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Filing: 1972-03-02
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Granted: 1973-09-11
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Expires: 1992-03-02
Abstract
Abstract AQUEOUS BATH FOR THE CHEMICAL DEPOSITION OF DUCTILE COPPER COATINGS IS PROVIDED INCLUDING ALKALOID BRUCINE IN EXCEEDINGLY SMALL QUANTITIES FOR USE ON SURFACES.
Inventors
- 👤 W Haack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:39
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/38; C23C18/40; C23C18/405
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |