US3202506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature oxidation-resistant cobalt base alloys
Assignee: Individual
•
Filing: 1963-01-23
•
Granted: 1965-08-24
•
Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 David E Deutsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:09
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COBALT BASE ALLOY CONSISTNG ESSENTIALLY OF 15 TO 24% BY WT. OF CHROMIUM, 6 TO 12% BY WT OF TUNGSTEN, UP TO A MAXIMUM OF 12% BY WT OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF TANTALUM, NIOBIUM AND MOLYBDENUM, 0.30 TO 1.25% BY WT OF CARBON, 0.05 TO 2.5% BY WT OF YTTRIUM AND THE REMAINDER BEING COBALT.
Claim 2
Dependent Claim
63 words
A COBALT BASE ALLOY CONSISTNG ESSENTIALLY OF 15 TO 24% BY WT. OF CHROMIUM, 6 TO 12% BY WT OF TUNGSTEN, UP TO A MAXIMUM OF 12% BY WT OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF TANTALUM, NIOBIUM AND MOLYBDENUM, 0.30 TO 1.25% BY WT OF CARBON, 0.05 TO 2.5% BY WT OF YTTRIUM AND THE REMAINDER BEING COBALT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |