US2495854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low alloy steel containing titanium
Assignee: Individual
•
Filing: 1942-08-14
•
Granted: 1950-01-31
•
Expires: 1962-08-14
Abstract
No abstract record available.
Inventors
- 👤 Marburg Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:27
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A LOW-ALLOY HIGH-STRENGTH STRUCTURAL STEEL COMPOSED OF FROM SUBSTANTIALLY 0.2% TO 0.20% CARBON, 0.10% TO 1.50% MANGANESE, 0.02% TO 0.20% PHOSPHORUS, SULPHUR, RESIDUAL TO 0.05%, 0.02% TO 1% SILICON, 0.02% TO 1% COPPER, 0.30% TO 2% CHROMIUM AND 0.02 TO .30% TITANIUM, THE BALANCE BEING ESSENTIALLY IRON.
Claim 2
Dependent Claim
47 words
A LOW-ALLOY HIGH-STRENGTH STRUCTURAL STEEL COMPOSED OF FROM SUBSTANTIALLY 0.2% TO 0.20% CARBON, 0.10% TO 1.50% MANGANESE, 0.02% TO 0.20% PHOSPHORUS, SULPHUR, RESIDUAL TO 0.05%, 0.02% TO 1% SILICON, 0.02% TO 1% COPPER, 0.30% TO 2% CHROMIUM AND 0.02 TO .30% TITANIUM, THE BALANCE BEING ESSENTIALLY IRON.
References Cited (Backward Citations)
US2280796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |