US3764303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fe cr ni co mn mo welding material and blank wire and bare band electrode forms thereof
Assignee: Individual
•
Filing: 1970-07-10
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Granted: 1973-10-09
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Expires: 1990-07-10
Abstract
Abstract A COMPOSITE WELDED ARTICLE COMPRISING A HIGH-STRENGTH LOW-TEMPERATURE STEEL, IN PARTICULAR A STEEL ALLOY CONTAINING ABOUT 9% NICKEL, WHICH IS WELDED BY MEANS OF AN ARC-WELDING PROCESS WITH A NI-CR-FE ALLOY CONSISTING ESSENTIALLY OF 0.2% C, 5-30% CR, 5-30% NI, 6-60% CO, TRACES TO 12% MN, TRACES TO 0.65% SI, TRACES TO 3.5% MO AND THE REMAINDER IRON AND THE INEVITABLE UNPURITIES.
Inventors
- 👤 G Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:45
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/308; B23K35/3086; B23K35/3093; B23K35/36; B23K35/365
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |