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US 4,308,047 AGranted
Method of using oak leaf extract
OwnerElaine A. Hollandinventor
Life of this patent
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Abstract
The use of a diluted aqueous extract of oak leaves as a cleaner and plant growth stimulant is described. To provide the extract, dried leaves are preferably boiled in water to extract and disperse natural tannins and waxes from the leaves into the water. The extract is diluted with water for use as a cleaner, particularly for window glass, or for use in stimulating the growth of plants.
Claims4
The method for stimulating the growth of plants which comprises:
- applying an aqueous mixture containing an effective amount of an aqueous extract of dried oak leaves said extract containing waxes and tannins soluble or dispersible in boiling water to the leaves or roots or both of plants, the amount of aqueous mixture which is applied to the plants being sufficient such that the aqueous extract results in the stimulation of the plant growth.
Dependencies are inferred from the claim text.