Patent US2565953A successfully refreshed from Google Patents.
US2565953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low alloy steel of high mechanical strength, little sensitive to quenching, weldable, etc.
Assignee: TERNI IND ELETTR
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Filing: 1949-03-29
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Granted: 1951-08-28
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Expires: 1969-03-29
Abstract
No abstract record available.
Inventors
- 👤 Gaspari Vittorio De
- 👤 Bartocci Aldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:41
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A WELDABLE STEEL OF HIGH TENSILE STRENGHT, WHICH CONSISTS ESSENTIALLY OF, IN ADDITION TO IRON, 0.14-0.26% CARBON, 0.50-1,50% SILICON, 0.80-1.50% MANGANESE, 0.80-1.80% NICKEL, 0.50-1.50% CHROMIUM, AND AT LEAST ONE OF THE FOLLOWING ELEMENTS IN THE SPECIFIED PROPORTIONS, UP TO 0.30% MOLYBDENUM, UP TO 0.25% VANADIUM, AND UP TO 0.80% COPPER.
Claim 2
Dependent Claim
50 words
A WELDABLE STEEL OF HIGH TENSILE STRENGHT, WHICH CONSISTS ESSENTIALLY OF, IN ADDITION TO IRON, 0.14-0.26% CARBON, 0.50-1,50% SILICON, 0.80-1.50% MANGANESE, 0.80-1.80% NICKEL, 0.50-1.50% CHROMIUM, AND AT LEAST ONE OF THE FOLLOWING ELEMENTS IN THE SPECIFIED PROPORTIONS, UP TO 0.30% MOLYBDENUM, UP TO 0.25% VANADIUM, AND UP TO 0.80% COPPER.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |