Patent US2801916A successfully refreshed from Google Patents.
US2801916A
Expired / Lapsed
US
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Ferrous alloys for high temperature use
Assignee: Jessop William & Sons Ltd
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Filing: 1954-08-24
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Granted: 1957-08-06
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Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey T Harris
- 👤 Henry C Child
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/54; C22C38/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
ALLOYS COMPRISING MANGANESE 0.5-1.5 NICKEL 13-28 TOGETHER WITH AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF NIOBIUM, TITANIUM AND VANADIUM, THE CONTENT OF ANY SINGLE ELEMENT OF SAID GROUP BEING 0.5-3.5%, THE TOTAL OF TUNGSTEN, MOLYBDENUM AND THE TOTAL CONTENT OF SAID GROUP BEING BETWEEN 5 AND 10% , AND THE REMAINDER BEING SUBSTANTIALLY ALL IRON AND INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
61 words
ALLOYS COMPRISING MANGANESE 0.5-1.5 NICKEL 13-28 TOGETHER WITH AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF NIOBIUM, TITANIUM AND VANADIUM, THE CONTENT OF ANY SINGLE ELEMENT OF SAID GROUP BEING 0.5-3.5%, THE TOTAL OF TUNGSTEN, MOLYBDENUM AND THE TOTAL CONTENT OF SAID GROUP BEING BETWEEN 5 AND 10% , AND THE REMAINDER BEING SUBSTANTIALLY ALL IRON AND INCIDENTAL IMPURITIES.
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) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |