US2985531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Niobium-zirconium base alloy
Assignee: Ohio State University Research Foundation
•
Filing: 1959-06-05
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Granted: 1961-05-23
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Gerald M Gordon
- 👤 Speiser Rudolph
- 👤 Joseph W Spretnak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:04
CPC Classifications
C; C22; C22C; C22C16/00; C22C27/00; C22C27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
AN OXIDATION-RESISTANT ALLOY CONSISTING, APART FROM IMPURITIES, OF NIOBIUM, ZIRCONIUM AND TITANIUM IN THE APPROXIMATE PERCENTAGES BY WEIGHT OF 39-60% NIOBIUM, 39-60% ZIRCONIUM AND 1-6% TITANIUM.
Claim 2
Dependent Claim
26 words
AN OXIDATION-RESISTANT ALLOY CONSISTING, APART FROM IMPURITIES, OF NIOBIUM, ZIRCONIUM AND TITANIUM IN THE APPROXIMATE PERCENTAGES BY WEIGHT OF 39-60% NIOBIUM, 39-60% ZIRCONIUM AND 1-6% TITANIUM.
References Cited (Backward Citations)
US2838395A
Cited
US2883282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |