Patent US2858230A successfully refreshed from Google Patents.
US2858230A
Expired / Lapsed
US
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Method of making pigment and products thereof
Assignee: Metals Disintegrating Co Inc
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Filing: 1957-06-26
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Granted: 1958-10-28
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Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Knoll
- 👤 Hurd Eleanor Holbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:23
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/62; C09C1/64; C09C1/644; C09C1/646; C09C1/642; C09C1/648; C09D; C09D5/00; C09D5/08; C09D5/10; C09D5/103; C01; C01P; C01P2004/00; C01P2004/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE PROCESS OF MAKING WET ALUMINUM PIGMENT CONTAINING NON-LEAFING ALUMINUM FLAKE PARTICLES IN CONTACT WITH WATER WHICH COMPRISES THE ATTRITION OF ALUMINUM TO FORM ALUMINUM FLAKE PARTICLES IN THE PRESENCE OF A LUBRICANT WHILE CONTACTING SAID METAL, AND THE PARTICLES SO FORMED, WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF AVAILABLE PO4 ION IN AN AMOUNT OF AT LEAST ABOUT 0.7 PERCENT BY WEIGHT OF THE WEIGHT OF THE METAL, SAID PO4 ION BEING FURNISHED IN SAID AQUOUS SOLUTION FROM A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID AND AMMONIUM, ALKALI METAL, ALALINE EARTH METAL, ZINC AND MAGNESIUM SALTS OF SAID ACID, THE SAID AQUEOUS SOLUTION HAVING AN ACIDITY WITHIN THE RANGE INDICATED BY A PH OF ABOUT 1.5 TO ABOUT 11.
Claim 2
Dependent Claim
123 words
THE PROCESS OF MAKING WET ALUMINUM PIGMENT CONTAINING NON-LEAFING ALUMINUM FLAKE PARTICLES IN CONTACT WITH WATER WHICH COMPRISES THE ATTRITION OF ALUMINUM TO FORM ALUMINUM FLAKE PARTICLES IN THE PRESENCE OF A LUBRICANT WHILE CONTACTING SAID METAL, AND THE PARTICLES SO FORMED, WITH AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF AVAILABLE PO4 ION IN AN AMOUNT OF AT LEAST ABOUT 0.7 PERCENT BY WEIGHT OF THE WEIGHT OF THE METAL, SAID PO4 ION BEING FURNISHED IN SAID AQUOUS SOLUTION FROM A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID AND AMMONIUM, ALKALI METAL, ALALINE EARTH METAL, ZINC AND MAGNESIUM SALTS OF SAID ACID, THE SAID AQUEOUS SOLUTION HAVING AN ACIDITY WITHIN THE RANGE INDICATED BY A PH OF ABOUT 1.5 TO ABOUT 11.
References Cited (Backward Citations)
US2309377A
Cited
US2393731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |