Patent US2678879A successfully refreshed from Google Patents.
US2678879A
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Flaky aluminum powder
Assignee: Societe Anonyme pour lIndustrie de lAluminium SA
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Filing: 1952-05-09
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Granted: 1954-05-18
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Expires: 1972-05-09
Abstract
No abstract record available.
Inventors
- 👤 Nuesch Johannes
- 👤 Bertschy Meinrad
- 👤 Galeazzi Secondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:54
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; B22F1/00; B22F1/06; B22F1/068; B22F2998/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN ALUMINUM POWDER MAINLY COMPOSED OF SINGLE LAMELLAR ALUMINUM PARTICLES CONSISTING OF FLAKES BEING WELD-CONNECTED AT SPACED SURFACE SPOTS AND HAVING ALUMINUM OXIDE FILMS ENTRAPPED BETWEEN SAID FLAKES, SAID POWDER HAVING A BULK WEIGHT OF AT LEAST 0.7 KG./LITRE, AN ALUMINUM OXIDE CONTENTS OF 6 TO ABOUT 15 PER CENT AND A TOTAL LUBRICANT CONTENTS OF LESS THAN 0.3 PER CENT.
Claim 2
Dependent Claim
61 words
AN ALUMINUM POWDER MAINLY COMPOSED OF SINGLE LAMELLAR ALUMINUM PARTICLES CONSISTING OF FLAKES BEING WELD-CONNECTED AT SPACED SURFACE SPOTS AND HAVING ALUMINUM OXIDE FILMS ENTRAPPED BETWEEN SAID FLAKES, SAID POWDER HAVING A BULK WEIGHT OF AT LEAST 0.7 KG./LITRE, AN ALUMINUM OXIDE CONTENTS OF 6 TO ABOUT 15 PER CENT AND A TOTAL LUBRICANT CONTENTS OF LESS THAN 0.3 PER CENT.
References Cited (Backward Citations)
GB625364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-17 | 1957-11-16 | 1958-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-17 | 1961-11-16 | 1962-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-17 | 1965-11-16 | 1966-05-18 | $7700.00 | Window Closed / Lapsed |