Patent US3791801A successfully refreshed from Google Patents.
US3791801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplated steel sheet
Assignee: Toyo Kohan Co Ltd
•
Filing: 1971-07-23
•
Granted: 1974-02-12
•
Expires: 1991-07-23
Abstract
Abstract An electroplated steel plate product with a zinc-rich deposit on the steel surface, said deposit comprising an oxide of molybdenum and tungsten (including hydrated oxides), and/or the total amount in the oxide being about 0.05 to about 2 weight percent of the deposit. In addition, the deposit may further include at least one additional material selected from the group consisting of iron, nickel, cobalt, tin and lead, and compound of said metal, the total metal content of the said additional material being about 0.5 to about 15 weight percent of the deposit.
Inventors
- 👤 K Ariga
- 👤 T Mizobe
- 👤 S Morishita
- 👤 K Kanda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:10
CPC Classifications
C; C25; C25D; C25D9/00; C25D9/04; C25D9/08; C25D9/10; C25D3/00; C25D3/02; C25D3/22; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/1266; Y10T428/12667; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
An electroplated steel product with a zinc-rich deposit on the steel surface, said deposit comprising at least one oxide material selected from the group consisting of the oxides of molybdenum and tungsten, the total amount of molybdenum and tungsten being about 0.05 to about 2 weight percent of the deposit, and further, including at least one additional material selected from the group consisting of iron, nickel, cobalt, tin and lead, and oxides and hydroxides of said metals, the total metal content of the said additional material being about 0.5 to about 15 weight percent of the deposit said product having been formed by electro-deposition in an acidic aqueous electrolytic bath.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |