US3355265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing ductile coated steel and novel product
Assignee: United States Steel Corp
•
Filing: 1965-04-16
•
Granted: 1967-11-28
•
Expires: 1985-04-16
Abstract
No abstract record available.
Inventors
- 👤 Robert M Hudson
- 👤 Lesney Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:01
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/013; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12438; Y10T428/12493; Y10T428/12771; Y10T428/12778; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A STEEL FOIL PRODUCT COMPRISING A FULLY ANNEALED, COLD ROLLED STEEL BASE LESS THAN 0.004 INCH THICK HAVING A PROTECTIVE METAL COATING FROM THE GROUP CONSISTING OF CHROMIUM, COPPER, NICKEL AND TITANIUMMETALLURGICALLY BONDED THERETO AT THE INTERFACE BUT NOT COMPLETELY ALLOYED THEREWITH AT THE SURFACE OF SAID COATING.
Claim 2
Dependent Claim
48 words
A STEEL FOIL PRODUCT COMPRISING A FULLY ANNEALED, COLD ROLLED STEEL BASE LESS THAN 0.004 INCH THICK HAVING A PROTECTIVE METAL COATING FROM THE GROUP CONSISTING OF CHROMIUM, COPPER, NICKEL AND TITANIUMMETALLURGICALLY BONDED THERETO AT THE INTERFACE BUT NOT COMPLETELY ALLOYED THEREWITH AT THE SURFACE OF SAID COATING.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |