US3849176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-treated steel plates high in anticorrosiveness
Assignee: Nippon Steel Corp
•
Filing: 1972-03-17
•
Granted: 1974-11-19
•
Expires: 1992-03-17
Abstract
Abstract A surface-treated steel plate high in anti-corrosiveness which plate has been produced by coating a steel plate with an aqueous solution containing the nitrate or acetate of Ni as the principal component in conjunction with such metals as Cr, Mn, Zn and Al as selective components, followed by heating to produce a thermodecomposing reaction so as to cause a strong film containing metallic nickel and at least one metallic oxide to form on the surface of the steel plate. The thus-produced surface-treated steel plate is especially adapted for making cans.
Inventors
- 👤 Hidejiro Asano
- 👤 Yashichi Ouyagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; C; C23; C23C; C23C18/00; C23C18/02; C23C8/00; C23C8/06; C23C8/08; C23C8/10; B05D2350/00; B05D2350/60; B05D2350/63; B05D2504/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/1266; Y10T428/12771; Y10T428/12861; Y10T428/12937; Y10T428/12951; Y10T428/12972; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
54 words
AN IRON OR STEEL PRODUCT HAVING, ON THE SURFACE THEREOF, A FILM OF A THICKNESS OF LESS THAN 1U CONSISTING ESSENTIALLY OF NICKEL AND AT LEAST ONE OXIDES SELECTED FROM THE GROUP CONSISTING OF OXIDES OF CR, MN AND ZN WITH A COATING OF AN ORGANIC RESIN PAINT ON THE SURFACE OF SAID FILM.
Claim 2
Dependent Claim
54 words
AN IRON OR STEEL PRODUCT HAVING, ON THE SURFACE THEREOF, A FILM OF A THICKNESS OF LESS THAN 1U CONSISTING ESSENTIALLY OF NICKEL AND AT LEAST ONE OXIDES SELECTED FROM THE GROUP CONSISTING OF OXIDES OF CR, MN AND ZN WITH A COATING OF AN ORGANIC RESIN PAINT ON THE SURFACE OF SAID FILM.
Claim 3
Dependent Claim
19 words
An iron or steel product according to claim 1 wherein the organic resin paint is an epoxy resin paint.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |