US2514873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bimetallic billet
Assignee: Superior Steel Corp
•
Filing: 1945-06-30
•
Granted: 1950-07-11
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Expires: 1965-06-30
Abstract
No abstract record available.
Inventors
- 👤 Walter L Keene
- 👤 William A Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/011; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12271; Y10T428/12278; Y10T428/12347; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924; Y10T428/12951; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A BILLET COMPRISING A COMPONENT OF CARBON STEEL AND COMPONENT OF STRAIGHT CHROMIUM TYPE STAINLESS STEEL WELDED TOGETHER PERIPHERALLY AND A LAYER CONFINED BY SAID COMPONENTS AND THE WELD THEREBETWEEN, SAID LAYER BEING OF CUPRO-NICKEL IN WHICH THE COPPER RANGES FROM ABOUT 60% TO ABOUT 80%, THE REMAINDER BEING SUBSTANTIALLY ALL NICKEL.
Claim 2
Dependent Claim
52 words
A BILLET COMPRISING A COMPONENT OF CARBON STEEL AND COMPONENT OF STRAIGHT CHROMIUM TYPE STAINLESS STEEL WELDED TOGETHER PERIPHERALLY AND A LAYER CONFINED BY SAID COMPONENTS AND THE WELD THEREBETWEEN, SAID LAYER BEING OF CUPRO-NICKEL IN WHICH THE COPPER RANGES FROM ABOUT 60% TO ABOUT 80%, THE REMAINDER BEING SUBSTANTIALLY ALL NICKEL.
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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) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |