Patent US4899800A successfully refreshed from Google Patents.
Patent US2899303A successfully refreshed from Google Patents.
US2899303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha titanium alloys containing
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
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Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:57
CPC Classifications
C; C22; C22C; C22C14/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
AN ALPHA TITANIUM ALLOY CONSISTING ESSENTIALLY OF ABOUT 0.5% TO 5.0% ALUMINUM, 0.5% TO 3.0% VANADIUM, 0.5% TO 1% COLUMBIUM, BALANCE SUBSTANTIALLY TITANIUM WITH CARBON, NITROGEN AND OXYGEN AS INCIDENTAL IMPURITIES, FURTHER CHARACTERIZED IN THAT THE ALUMINUM, VANADIUM AND COLUMBIUM CONTENTS HAVE SOLUBILITY WITH ALPHA TITANIUM AT 825*C. AND BELOW.
Claim 2
Dependent Claim
50 words
AN ALPHA TITANIUM ALLOY CONSISTING ESSENTIALLY OF ABOUT 0.5% TO 5.0% ALUMINUM, 0.5% TO 3.0% VANADIUM, 0.5% TO 1% COLUMBIUM, BALANCE SUBSTANTIALLY TITANIUM WITH CARBON, NITROGEN AND OXYGEN AS INCIDENTAL IMPURITIES, FURTHER CHARACTERIZED IN THAT THE ALUMINUM, VANADIUM AND COLUMBIUM CONTENTS HAVE SOLUBILITY WITH ALPHA TITANIUM AT 825*C. AND BELOW.
Claim 3
Dependent Claim
50 words
AN ALPHA TITANIUM ALLOY CONSISTING ESSENTIALLY OF ABOUT: 0.5% TO 5.0% ALUMINUM, 0.5% TO 1% COLUMBIUM, 0.05% TO 1.5% SILICON, BALANCE SUBSTANTIALLY TITANIUM WITH CARBON, NITROGEN AND OXYGEN AS INCIDENTAL IMPURITIES, FURTHER CHARACTERIZED IN THAT THE ALUMINUM, COLUMBIUM AND SILICON CONTENTS HAVE SOLUBILITY WITH ALPHA TITANIUM AT 825*C. AND BELOW.
Claim 4
Dependent Claim
50 words
AN ALPHA TITANIUM ALLOY CONSISTING ESSENTIALLY OF ABOUT: 0.5% TO 5.0% ALUMINUM, 0.5% TO 1% COLUMBIUM, 0.05% TO 1.5% SILICON, BALANCE SUBSTANTIALLY TITANIUM WITH CARBON, NITROGEN AND OXYGEN AS INCIDENTAL IMPURITIES, FURTHER CHARACTERIZED IN THAT THE ALUMINUM, COLUMBIUM AND SILICON CONTENTS HAVE SOLUBILITY WITH ALPHA TITANIUM AT 825*C. AND BELOW.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |