Patent US2666697A successfully refreshed from Google Patents.
US2666697A
Expired / Lapsed
US
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Ferrous alloys
Assignee: LOUISE J EDER
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Filing: 1951-01-18
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Granted: 1954-01-19
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Expires: 1971-01-18
Abstract
No abstract record available.
Inventors
- 👤 Louise J Eder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:43
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A FERROUS ALLOY PARTICULARLY ADAPTED FOR HARD FACING PURPOSES TO RESIST WEAR AND ABRASION AT HIGH TEMPERATURES, SAID ALLOY CONTAINING ABOUT 8% CARBON, ABOUT 2.0% CHROMIUM, ABOUT 2.0% NICKEL, NOT MORE THAN 4.0% MOLYBDENUM, ABOUT 3.0% TUNGSTEN, ABOUT .75% VANADIUM, AND THE REMAINDER OF SAID ALLOY BEING IRON.
Claim 2
Dependent Claim
48 words
A FERROUS ALLOY PARTICULARLY ADAPTED FOR HARD FACING PURPOSES TO RESIST WEAR AND ABRASION AT HIGH TEMPERATURES, SAID ALLOY CONTAINING ABOUT 8% CARBON, ABOUT 2.0% CHROMIUM, ABOUT 2.0% NICKEL, NOT MORE THAN 4.0% MOLYBDENUM, ABOUT 3.0% TUNGSTEN, ABOUT .75% VANADIUM, AND THE REMAINDER OF SAID ALLOY BEING IRON.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |