US3245885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing nickel-plated steel plate
Assignee: Yawata Iron and Steel Co Ltd
•
Filing: 1964-10-05
•
Granted: 1966-04-12
•
Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Asano Hidejiro
- 👤 Segawa Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:38
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/38; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF PRODUCING A VERY THINLY NICKEL-PLATED STEEL SHEET COMPRISING THE STEPS OF PLATING A STEEL SHEET WITH A SUBSTANCE SELECTED FROM A GROUP CONSISTING OF NICKEL AND NICKEL BASE ALLOY ABOUT 0.04 TO 0.3 MICRON THICK, CATHOD-TREATING SAID NICKEL-PLATED STEEL SHEET AT A CURRENT DENSITY OF 1.5 TO 4.0 A./DM.2 FOR FROM 1 TO 10 SECONDS IN AN AQUEOUS SOLUTION OF FROM 1 TO 5% OF A COMPOUND SELECTED FROM A GROUP CONSISTING OF SODIUM DICHROMATE AND POTASSIUM DICHROMATE.
Claim 2
Independent Claim
81 words
A METHOD OF PRODUCING A VERY THINLY NICKEL-PLATED STEEL SHEET COMPRISING THE STEPS OF PLATING A STEEL SHEET WITH A SUBSTANCE SELECTED FROM A GROUP CONSISTING OF NICKEL AND NICKEL BASE ALLOY ABOUT 0.04 TO 0.3 MICRON THICK, CATHOD-TREATING SAID NICKEL-PLATED STEEL SHEET AT A CURRENT DENSITY OF 1.5 TO 4.0 A./DM.2 FOR FROM 1 TO 10 SECONDS IN AN AQUEOUS SOLUTION OF FROM 1 TO 5% OF A COMPOUND SELECTED FROM A GROUP CONSISTING OF SODIUM DICHROMATE AND POTASSIUM DICHROMATE.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |