US3223522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium, tungsten cobalt base alloys containing additions of tantalum, titanium and niobium
Assignee: Individual
•
Filing: 1963-01-31
•
Granted: 1965-12-14
•
Expires: 1983-01-31
Abstract
No abstract record available.
Inventors
- 👤 John J Rausch
- 👤 Joseph B Mcandrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:47
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
IN A FORGEABLE, OXIDATION RESISTANT ALLOY CONSISTING OF 45-80% COBALT, 15-35% CHROMIUM, 5-20% TUNGSTEN, THE ADDITION OF 2-4% TANTALUM AND 1-2% TITANIUM CHARACTERIZED BY A 30-170 FOLD INCREASE IN RUPUTRE LIFE AT 1700*F. AND UNDER A STRES OF 10,000 P.S.I.
Claim 2
Dependent Claim
40 words
IN A FORGEABLE, OXIDATION RESISTANT ALLOY CONSISTING OF 45-80% COBALT, 15-35% CHROMIUM, 5-20% TUNGSTEN, THE ADDITION OF 2-4% TANTALUM AND 1-2% TITANIUM CHARACTERIZED BY A 30-170 FOLD INCREASE IN RUPUTRE LIFE AT 1700*F. AND UNDER A STRES OF 10,000 P.S.I.
References Cited (Backward Citations)
US3085005A
Cited
US2974037A
Cited
US2974036A
Cited
US3026199A
Cited
US3118763A
Cited
US2996379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |