Patent US3090567A successfully refreshed from Google Patents.
US3090567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Size reduction of metal particles
Assignee: Individual
•
Filing: 1960-09-19
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Granted: 1963-05-21
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Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Robert J Schafer
- 👤 Quatinetz Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:12
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD OF REDUCING METAL PARTICLES TO A SIZE BELOW ABOUT ONE MICRON WHICH COMPRISES MIXING SAID METAL PARTICLES, AN INORGANIC SALT AND A SUFFICIENT QUANTITY OF A LIQUID DILUENT TO FORM A FLOWABLE SLURRY, AND MILLING SAID SLURRY TO REDUCE THE SIZE OF SAID METAL PARTICLES, SAID SALT CONSISTING ESSENTIALLY OF A COMPOUND FORMED FROM AT LEAST ONE POLYVALENT ION AND BEING COMPOSED OF MORE THAN TWO CHEMICAL ELEMENTS AND SAID SALT COMPRISING BETWEEN ABOUT 5% AND 300% BY WEIGHT OF SAID METAL PARTICLES, AND SAID DILUENT BEING CHEMICALLY INERT TO SAID METAL PARTICLES AND SAID SALT AND COMPRISING BETWEEN ABOUT 50% AND 300% BY WEIGHT OF THE TOTAL METAL PARTICLES AND SALT.
Claim 2
Independent Claim
114 words
A METHOD OF REDUCING METAL PARTICLES TO A SIZE BELOW ABOUT ONE MICRON WHICH COMPRISES MIXING SAID METAL PARTICLES, AN INORGANIC SALT AND A SUFFICIENT QUANTITY OF A LIQUID DILUENT TO FORM A FLOWABLE SLURRY, AND MILLING SAID SLURRY TO REDUCE THE SIZE OF SAID METAL PARTICLES, SAID SALT CONSISTING ESSENTIALLY OF A COMPOUND FORMED FROM AT LEAST ONE POLYVALENT ION AND BEING COMPOSED OF MORE THAN TWO CHEMICAL ELEMENTS AND SAID SALT COMPRISING BETWEEN ABOUT 5% AND 300% BY WEIGHT OF SAID METAL PARTICLES, AND SAID DILUENT BEING CHEMICALLY INERT TO SAID METAL PARTICLES AND SAID SALT AND COMPRISING BETWEEN ABOUT 50% AND 300% BY WEIGHT OF THE TOTAL METAL PARTICLES AND SALT.
References Cited (Backward Citations)
DE1071455B
Cited
US1257943A
Cited
US1699694A
Cited
GB376242A
Cited
US2259457A
Cited
GB569402A
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FR1001061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |