Plant protecting and regulating compositions – Antidotes
Reexamination Certificate
1999-02-18
2001-03-27
Pak, John (Department: 1616)
Plant protecting and regulating compositions
Antidotes
C504S188000, C071S031000, C071S032000, C071S054000, C071S063000, C071S903000
Reexamination Certificate
active
06207615
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is for a lawn fertilizer for canine waste damage, and more particularly, pertains to a lawn fertilizer for treating urine spots and feces spots in lawns caused by canine waste, such as small dogs, medium sized dogs, large dogs, and any other type of animal besides canines.
2. Description of the Prior Art
In the past, animal waste from urinating or defecating, such as from dogs, would burn lawn grass, leaving unsightly dead areas of grass.
The present invention overcomes the problems of prior art by providing a lawn fertilizer for the appropriate season for enhancing the growth of lawn turf, particularly grasses.
SUMMARY OF THE INVENTION
The general purpose of the present invention is to provide a lawn fertilizer for enhancing and continuing the growth of damaged turf areas caused by animal urine and animal feces, and particularly enhancing the growth of what is referred to as burn areas of the lawn.
According to one embodiment of the present invention, there is provided a fertilizer for reducing burn damage from canine waste to be applied to the lawn turf consisting of a combination of nitrogen, phosphorus and potash, and may also include gypsum. Also, when used on a regular basis, the fertilizer prevents damage from pet waste. The turf maintenance system reduces burn spots and restores burn spots.
In another embodiment of the present invention, there is provided a fertilizer for application to turf grass to prevent or rectify turf damage from a canine waste deposition. The fertilizer may have from about 6 wt % to about 8 wt % of nitrogen, from about 4 wt % to about 6 wt % of phosphorus, as P
2
O
5
, and about 4 wt % to about 6 wt % of potassium, as K
2
O, about 60 wt % to about 68 wt % gypsum, and from about 2 wt % to about 6 wt % of limestone. The preferred fertilizer has a Guaranteed Analysis of 7-5-5 and includes about 64 wt % gypsum, and about 5 wt % limestone. The particle sizing of the component mixture is 10-14 Tyler screen or alternatively 10-16 Tyler screen. The preferred fertilizer of this embodiment may be formed by preparing a mixture of about 10.85 wt % Diammonium Phosphate; about 4.05 wt % Muriate of Potash; about 5.00 wt % Sulfate of Potash; about 10.95 wt % Urea; about 64 wt % Gypsum; and the balance of about 5.15 wt % limestone. Preferably, the particles are lightly sprayed with oil to improved physical durability during handling.
Significant aspects and features of the present invention include a fertilizer which will provide a turf maintenance system of a mix of nitrogen, phosphate, soluble potash, gypsum and limestone.
Another significant aspect and feature of the present invention is a dry fertilizer which can be spread by hand or by a spreader over burn areas of the yard caused by animal wastes, such as dog urine or dog feces, and minimize or eliminate the notorious brown spots caused by the pet.
Having thus described embodiments of the present invention, it is the principal object of the present invention to provide a canine turf maintenance system for lawns.
LAWN FERTILIZER FOR CANINE WASTE DAMAGE
PARTS LIST
10
canine turf maintenance system dry fertilizer
12
hand
14
burn spot
16
burn spot
18
grass
REFERENCES:
patent: 4863108 (1989-09-01), Mitchell
patent: 6047650 (2000-04-01), Taddei
Jaeger Hugh D.
K9 Products, Inc.
Pak John
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