US2564474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weld rod and coating therefor
Assignee: Armco Inc
•
Filing: 1948-01-21
•
Granted: 1951-08-14
•
Expires: 1968-01-21
Abstract
No abstract record available.
Inventors
- 👤 Alexander L Feild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:54
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/308; B23K35/3086; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12125; Y10T428/12132; Y10T428/12139; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/12979; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/292
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A WELD ROD FOR PROVIDING A STAINLESS STEEL WELD DEPOSIT OF EXTRA LOW CARBON CONTENT COMPRISING IN COMBINATION, A CORE CONTAINING ABOUT 0.03% MAXIMUM CARBON CONTENT, ABOUT 21% CHROMIUM, ABOUT 10% NICKEL, ABOUT 1.5% MANGANESE, WITH REMAINDER SUBSTANTIALLY ALL IRON; AND A COATING ON SAID CORE CONTAINING COLUMBIUM ORE HAVING A CARBON CONTENT NOT EXCEEDING 0.03%, CRUSHED FERRO-SILICON RELIEVED OF FINES AND HAVING AN EXTREMELY LOW CARBON CONTENT AND BEING IN AMOUNT IN EXCESS OF THAT NECESSARY TO REDUCE THE ORE, A FLUX OF LIMESTONE AND FLUORSPAR IN MAJOR AMOUNT AND ASBESTOS IN MINOR AMOUNT, AND A SODIUM SILICATE BINDER.
References Cited (Backward Citations)
GB298598A
Cited
US2190486A
Cited
US1954296A
Cited
US1872254A
Cited
US2011706A
Cited
GB459366A
Cited
US2241563A
Cited
US2320260A
Cited
US2336237A
Cited
US2435504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |