US3206324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and pre-flux for coating ferrous metals with nickel prior to galvanizing
Assignee: Individual
•
Filing: 1961-06-22
•
Granted: 1965-09-14
•
Expires: 1981-06-22
Abstract
No abstract record available.
Inventors
- 👤 John R Daesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C23C2/00; C23C2/02; C23C2/024; C23C2/026
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
A METHOD OF GALVANIZING A FERROUS METAL COMPRISING PICKLING SAID FERROUS METAL, PASSING THE PICKLED METAL THROUGH AN AQUEOUS PRE-FLUX SOLUTION COMPRISING AN AQUEOUS SOLUTION OF LESS THAN 35% BY WEIGHT OF NICKELOUS CHLORIDE HEXAHYDRATE, AT LEAST 5% BY WEIGHT OF A SUBSTANCE HAVING A FREE ALDEHYDIC GROP, AND AT LEAST 5% BY WEIGHT OF AT LEAST ONE SOLUBLE HALIEDE SALT SELECTED FROM THE GROUP CONSISTING OF AMMONIUM HALIDES, ALKALI METAL HALIDE AND ALKALINE EARTH METAL HALIDES, AND SUBSEQUENTLY PASSING THE PRE-FLUXED METAL THROGH A GALVANIZING BATH.
References Cited (Backward Citations)
US2191813A
Cited
US2315740A
Cited
US2762723A
Cited
US2999770A
Cited
US2940870A
Cited
US3015858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |