US3843359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand cast nickel-base alloy
Assignee: Huntington Alloys Corp
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Filing: 1973-03-23
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Granted: 1974-10-22
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Expires: 1993-03-23
Abstract
Abstract 1. AN AIR MELTED, SAND CASTING FORMED OF AN ALLOY CONSISTING OF 20 TO 24% CHROMIUM, 7 TO 11% MOLYBDENUM, 3 TO 4.5% COLUMBIUM, UP TO 0.1% CARBON, UP TO 0.1% ALUMINUM, UP TO LSS THAN 0.0% SILICON, UP TO 12% IRON, UP TO 0.015% BORON, CALCIUM IN A SMALL BUT EFFECTIVE AMOUNT UP TO 0.1% TO IMPROVE REPAIR WELDABILITY, UP TO 0.5% MANGANESE AND 55 TO 62% NICKEL.
Inventors
- 👤 M Fiene
- 👤 N Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN AIR MELTED, SAND CASTING FORMED OF AN ALLOY CONSISTING OF 20 TO 24% CHROMIUM, 7 TO 11% MOLYBDENUM, 3 TO 4.5% COLUMBIUM, UP TO 0.1% CARBON, UP TO 0.1% ALUMINUM, UP TO LSS THAN 0.0% SILICON, UP TO 12% IRON, UP TO 0.015% BORON, CALCIUM IN A SMALL BUT EFFECTIVE AMOUNT UP TO 0.1% TO IMPROVE REPAIR WELDABILITY, UP TO 0.5% MANGANESE AND 55 TO 62% NICKEL.
Claim 2
Dependent Claim
68 words
AN AIR MELTED, SAND CASTING FORMED OF AN ALLOY CONSISTING OF 20 TO 24% CHROMIUM, 7 TO 11% MOLYBDENUM, 3 TO 4.5% COLUMBIUM, UP TO 0.1% CARBON, UP TO 0.1% ALUMINUM, UP TO LSS THAN 0.0% SILICON, UP TO 12% IRON, UP TO 0.015% BORON, CALCIUM IN A SMALL BUT EFFECTIVE AMOUNT UP TO 0.1% TO IMPROVE REPAIR WELDABILITY, UP TO 0.5% MANGANESE AND 55 TO 62% NICKEL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |