US2602737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resisting steels
Assignee: Union Carbide Corp
•
Filing: 1949-05-10
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Granted: 1952-07-08
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 William O Binder
- 👤 Thompson James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
CHROMIUM-NICKEL STEEL FULLY AUSTENITIC IN THE ANNEALED CONDITION AND CONTAINING 16% TO 25% CHROMIUM; 5% TO 25% NICKEL; UP TO 3% MOLYBEDNUM; 0.02% TO 0.06% CARBON; 0.25% TO 2.5% MANGANESE; UP TO 1% SILICON; AND 0.1% TO 0.2% NITROGEN, THE REMAINDER IRON, THE NICKEL CONTENT OF SUCH STEEL BEING SUBSTANTIALLY EQUAL TO:
Claim 2
Dependent Claim
52 words
CHROMIUM-NICKEL STEEL FULLY AUSTENITIC IN THE ANNEALED CONDITION AND CONTAINING 16% TO 25% CHROMIUM; 5% TO 25% NICKEL; UP TO 3% MOLYBEDNUM; 0.02% TO 0.06% CARBON; 0.25% TO 2.5% MANGANESE; UP TO 1% SILICON; AND 0.1% TO 0.2% NITROGEN, THE REMAINDER IRON, THE NICKEL CONTENT OF SUCH STEEL BEING SUBSTANTIALLY EQUAL TO:
References Cited (Backward Citations)
US2256614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |