US2864696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel base alloys
Assignee: Flowserve Corp
•
Filing: 1956-01-31
•
Granted: 1958-12-16
•
Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Foreman Jay William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:20
CPC Classifications
C; C22; C22C; C22C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN ALLOY CHARACTERIZED BY EXTREME RESISTANCE TO CORROSION AND ABRASION HAVING IN ITS AS-CAST STATE THE FOLLOWING COMPOSITION: CHROMIUM 10 TO 25%; FROM 5 TO 20% SILICON; BORON FROM 0.25 TO 4%; COPPER UP TO 2%; MOLYBDENUM UP TO 4%; CARBON 0.25% MAXIMUM; AS LITTLE IRON AS POSSIBLE WHICH TOGETHER WITH THE USUAL INCIDENTAL IMPURITIES ARE ALWAYS LESS THAN 8%, IRON BEING PREDOMINANT AMONG THESE BUT NOT EXCEEDING 5%; THE BALANCE BEING NICKEL.
Claim 2
Dependent Claim
73 words
AN ALLOY CHARACTERIZED BY EXTREME RESISTANCE TO CORROSION AND ABRASION HAVING IN ITS AS-CAST STATE THE FOLLOWING COMPOSITION: CHROMIUM 10 TO 25%; FROM 5 TO 20% SILICON; BORON FROM 0.25 TO 4%; COPPER UP TO 2%; MOLYBDENUM UP TO 4%; CARBON 0.25% MAXIMUM; AS LITTLE IRON AS POSSIBLE WHICH TOGETHER WITH THE USUAL INCIDENTAL IMPURITIES ARE ALWAYS LESS THAN 8%, IRON BEING PREDOMINANT AMONG THESE BUT NOT EXCEEDING 5%; THE BALANCE BEING NICKEL.
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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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |