US2877113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing sintered nickelaluminum articles
Assignee: Siemens Plania Werke AG
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Filing: 1956-07-02
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Granted: 1959-03-10
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Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Fitzer Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:52
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF MAKING SHAPED HEAT RESISTING AND TINDERPROOF ARTICLES OF NICKEL-ALUMINUM COMPOUNDS CONTAINING FROM ABOUT 17% TO ABOUT 35% ALUMINUM BY WEIGHT, COMPRISING REACTING THE COMPONENTS, NICKEL AND ALUMINUM, IN LIQUID MERCURY AT TEMPERATURES BETWEEN 370* C. AND 750* C. TO PRODUCE AN ALLOYED NICKEL-ALUMINUM COMPOUND POWDER FLOATING IN THE MERCURY, FREEING SAID ALLOYED POWDER OF THE MAJOR PART OF MERCURTY ADHERING THERETO, WORKING SAID POWDER TO FORM SAID ARTICLES THEREFROM, AND SINTERING SAID ARTICLES IN A NON-OXIDIZING ATMOSPHERE AT TEMPERATURES ABOVE 1350* C. BUT BELOW 1610* C.
Claim 2
Independent Claim
89 words
A METHOD OF MAKING SHAPED HEAT RESISTING AND TINDERPROOF ARTICLES OF NICKEL-ALUMINUM COMPOUNDS CONTAINING FROM ABOUT 17% TO ABOUT 35% ALUMINUM BY WEIGHT, COMPRISING REACTING THE COMPONENTS, NICKEL AND ALUMINUM, IN LIQUID MERCURY AT TEMPERATURES BETWEEN 370* C. AND 750* C. TO PRODUCE AN ALLOYED NICKEL-ALUMINUM COMPOUND POWDER FLOATING IN THE MERCURY, FREEING SAID ALLOYED POWDER OF THE MAJOR PART OF MERCURTY ADHERING THERETO, WORKING SAID POWDER TO FORM SAID ARTICLES THEREFROM, AND SINTERING SAID ARTICLES IN A NON-OXIDIZING ATMOSPHERE AT TEMPERATURES ABOVE 1350* C. BUT BELOW 1610* C.
References Cited (Backward Citations)
US1599618A
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US1607245A
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US2156002A
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US2491866A
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US2620555A
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US2751668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |