Patent US3897238A successfully refreshed from Google Patents.
US3897238A
Expired / Lapsed
US
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Method of uniformly distributing substances in a carrier material and pulverous carrier material
Assignee: Individual
•
Filing: 1971-10-26
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Granted: 1975-07-29
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Expires: 1991-10-26
Abstract
Abstract A method of uniformly distributing substances in a carrier material characterized primarily by mixing a compound, which forms the carrier material by means of a chemical reaction, with the substance to be intermixed with the carrier material, and subsequently treating the mixture with a compound which reacts with the carrier material forming compound to form the carrier material while increasing the specific surface and maintaining a pulverous state.
Inventors
- 👤 Friedrich Bolsing
- 👤 Heinrich Mencke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:24
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/14; A; A01; A01N; A01N25/00; A01N25/08; B; B01; B01F; B01F23/00; B01J; B01J2/00; B01J2/006
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
A METHOD OF FORMING A PULVERULENT MIXTURE OF AN OILY OR BITUMINOUS MATERIAL AND THE HYDROXIDE OF CALCIUM, MAGNESIUM OR ALUMINUM, WHICH COMPRISES MIXING SAID OILY OR BITUMINOUS MATERIAL WITH THE OXIDE, CARBIDE OR NITRIDE OF CALCIUM, MAGNESIUM R ALUMINUM, AND CONTACTING SAID MIXTURE WITH APPROXIMATELY THE STOICHIOMETRIC AMOUNT OF WATER REQUIRED TO FORM CALCIUM, MAGNESIUM OR ALUMINUM HYDROXIDE THEREBY TO FORM SAID HYDROXIDE, THE RESULTING HYDROXIDE BEING CHARACTERIZED BY A LARGE SURFACE AREA AND BEING SUBSTANTIALLY HOMOGENEOUSLY MIXED WITH SAID OILY OR BITUMINOUS MATERIAL.
Claim 2
Independent Claim
85 words
A METHOD OF FORMING A PULVERULENT MIXTURE OF AN OILY OR BITUMINOUS MATERIAL AND THE HYDROXIDE OF CALCIUM, MAGNESIUM OR ALUMINUM, WHICH COMPRISES MIXING SAID OILY OR BITUMINOUS MATERIAL WITH THE OXIDE, CARBIDE OR NITRIDE OF CALCIUM, MAGNESIUM R ALUMINUM, AND CONTACTING SAID MIXTURE WITH APPROXIMATELY THE STOICHIOMETRIC AMOUNT OF WATER REQUIRED TO FORM CALCIUM, MAGNESIUM OR ALUMINUM HYDROXIDE THEREBY TO FORM SAID HYDROXIDE, THE RESULTING HYDROXIDE BEING CHARACTERIZED BY A LARGE SURFACE AREA AND BEING SUBSTANTIALLY HOMOGENEOUSLY MIXED WITH SAID OILY OR BITUMINOUS MATERIAL.
Claim 3
Dependent Claim
30 words
The method of forming an insecticidal composition according to claim 1, wherein the oily or bituminous material is mixed in about 3 to about 54% by weight of the hydroxide.
References Cited (Backward Citations)
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US2343360A
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US3024161A
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US3056723A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |