US3235404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and compositions for zinc coating aluminum
Assignee: Diversey Wyandotte Corp
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Filing: 1962-11-02
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Granted: 1966-02-15
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Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Mickelson Floyd
- 👤 Ralph E Pettit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:28
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/42; C25D5/44; C23; C23C; C23C18/00; C23C18/16; C23C18/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF APPLYING ZINC TO ALUMINUM, INCLUDING ALLOYS THEREOF, FOR SUBSEQUENTLY ELECTROPLATING METALS THEREON WHICH COMPRISES IMMERSING THE ALUMINUM IN A BATH CONSISTING OF WATER, 100 TO 700 GM./LITER OF AN ALKALI METAL HYDROXIDE, 10 TO 200 GM/LITER OF ZINC OXIDE AND 1 TO 200 GM./LITER OF A MEMBER OF THE GROUP CONSISTING OF ALKALI METAL GLUCONATES AND ALKALI METAL HEPTAGLUCONATES, AT 60 TO 120*F. FOR A TIME OF AT LEAST 5 SECONDS AND SUFFICIENT TO APPLY AN APPRECIABLE ZINC COATING ON THE ALUMINUM.
Claim 2
Independent Claim
85 words
A METHOD OF APPLYING ZINC TO ALUMINUM, INCLUDING ALLOYS THEREOF, FOR SUBSEQUENTLY ELECTROPLATING METALS THEREON WHICH COMPRISES IMMERSING THE ALUMINUM IN A BATH CONSISTING OF WATER, 100 TO 700 GM./LITER OF AN ALKALI METAL HYDROXIDE, 10 TO 200 GM/LITER OF ZINC OXIDE AND 1 TO 200 GM./LITER OF A MEMBER OF THE GROUP CONSISTING OF ALKALI METAL GLUCONATES AND ALKALI METAL HEPTAGLUCONATES, AT 60 TO 120*F. FOR A TIME OF AT LEAST 5 SECONDS AND SUFFICIENT TO APPLY AN APPRECIABLE ZINC COATING ON THE ALUMINUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |