US3131048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable metal chelate preparations
Assignee: Individual
•
Filing: 1960-05-02
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Granted: 1964-04-28
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Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 Leslie L Balassa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:40
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02; C07; C07C; C07C59/00; C07C59/01; C07C59/06; Y; Y10; Y10S; Y10S71/00; Y10S71/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A METAL CHELATE COMPOSITION ADAPTED FOR APPLICATION TO PLANTS AND SOILS WHICH IS STABLE AND WILL NOT FORM A PRECIPITATE UPON DILUTION WITH WATER NOR WITHIN A PH RANGE FROM ABOUT 6 TO ABOUT 11, COMPRISING AN AQUEOUS SOLUTION OF A CHELATE OF A SOLUBLE INORGANIC SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, MANGANESE, ZINC, COPPER, COBALT, CALCIUM AD MAGNESIUM WITH A CHELATING ACID SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROXY CARBOXYLIC ACIDS CONTAINING FROM 2 TO 6 CARBON ATOMS AND BENZENE CARBOXYLIC ACIDS EACH ACID CONTAINING A HYDROXY GROUP IN ALPHA POSITION TO A CARBOXYLIC ACID GROUP, SAID SOLUTION HAVING A PH BETWEEN ABOUT 6.5 AND ABOUT 7.5, THE MOLAR RATIO OF CHELATING ACID TO METAL PRESENT BEING BETWEEN ABOUT 1.4:1 AND ABOUT 20:1, SAID CHELATE BEING PREPARED BY DISSOLVEING SAID METAL SALT DIRECTLY IN AN AQUEOUS SOLUTION OF SAID CHELATING ACID IN ACCORDANCE WITH THE AFORESAID MOLAR RATIO AND THEN ADJUSTING THE PH OF THE SOLUTION TO BETWEEN ABOUT 6.5 AND ABOUT 7.5 BY MEANS OF AN ALKALI HYDROXIDE.
Claim 2
Dependent Claim
176 words
A METAL CHELATE COMPOSITION ADAPTED FOR APPLICATION TO PLANTS AND SOILS WHICH IS STABLE AND WILL NOT FORM A PRECIPITATE UPON DILUTION WITH WATER NOR WITHIN A PH RANGE FROM ABOUT 6 TO ABOUT 11, COMPRISING AN AQUEOUS SOLUTION OF A CHELATE OF A SOLUBLE INORGANIC SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, MANGANESE, ZINC, COPPER, COBALT, CALCIUM AD MAGNESIUM WITH A CHELATING ACID SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROXY CARBOXYLIC ACIDS CONTAINING FROM 2 TO 6 CARBON ATOMS AND BENZENE CARBOXYLIC ACIDS EACH ACID CONTAINING A HYDROXY GROUP IN ALPHA POSITION TO A CARBOXYLIC ACID GROUP, SAID SOLUTION HAVING A PH BETWEEN ABOUT 6.5 AND ABOUT 7.5, THE MOLAR RATIO OF CHELATING ACID TO METAL PRESENT BEING BETWEEN ABOUT 1.4:1 AND ABOUT 20:1, SAID CHELATE BEING PREPARED BY DISSOLVEING SAID METAL SALT DIRECTLY IN AN AQUEOUS SOLUTION OF SAID CHELATING ACID IN ACCORDANCE WITH THE AFORESAID MOLAR RATIO AND THEN ADJUSTING THE PH OF THE SOLUTION TO BETWEEN ABOUT 6.5 AND ABOUT 7.5 BY MEANS OF AN ALKALI HYDROXIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |