US2721137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium base alloys
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1952-09-13
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Granted: 1955-10-18
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Expires: 1972-09-13
Abstract
No abstract record available.
Inventors
- 👤 Richard K Pitler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:55
CPC Classifications
C; C22; C22C; C22C14/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN ALLOY CONSISTING OF, 1% TO 4% IRON, 1% TO 4% CHROMIUM, 1% TO 4% MOLYBDENUM, 1% TO 6% ALUMINUM AND THE BALANCE TITANIUM WITH INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
27 words
AN ALLOY CONSISTING OF, 1% TO 4% IRON, 1% TO 4% CHROMIUM, 1% TO 4% MOLYBDENUM, 1% TO 6% ALUMINUM AND THE BALANCE TITANIUM WITH INCIDENTAL IMPURITIES.
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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |