US2645575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium-nickel titanium base alloys
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1949-10-29
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Granted: 1953-07-14
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Expires: 1969-10-29
Abstract
No abstract record available.
Inventors
- 👤 Schuyler A Herres
- 👤 Thomas K Redden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:32
CPC Classifications
C; C22; C22C; C22C14/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A HEAT-TREATABLE TITANIUM-BASE ALLOY CONSISTING OF ABOUT .02 TO .40% OXYGEN, ABOUT .02 TO .25% NITROGEN, ABOUT 1 TO 5% NICKEL, ABOUT 10 TO 18% CHROMIUM, AND THE REMAINDER TITANIUM.
Claim 2
Dependent Claim
30 words
A HEAT-TREATABLE TITANIUM-BASE ALLOY CONSISTING OF ABOUT .02 TO .40% OXYGEN, ABOUT .02 TO .25% NITROGEN, ABOUT 1 TO 5% NICKEL, ABOUT 10 TO 18% CHROMIUM, AND THE REMAINDER TITANIUM.
References Cited (Backward Citations)
DE718822C
Cited
US2234428A
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US2258992A
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US2280103A
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US2287888A
Cited
US2267300A
Cited
US2486576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |