PATENTS
The Company has been awarded various design and utility patents for its four
wheel walk behind trimmer as well as its cutting head systems, lines and
blades. Significant U.S. patents, trademarks & applications include:
Patent Patent
Trimmer On Wheels Patents Date Number
Utility patent for a power line trimmer on 1/23/90 4,894,980
wheels in which the line extends beyond the 3/20/90 4,909,024
deck 10/16/90 4,962,635
Design patent for a power line trimmer on wheels 7/17/90 309,311
Utility patent for power line trimmer on wheels 7/09/91 1,285,774
(Canadian)
Battery powered trimmers/mower with battery 12/17/96 5,584,723
pack drop load capability.
Cutting Head Patents
Triangular shaped cutting line 3/6/90 4,905,465
Cutting head used on the line trimmer on wheels 9/17/91 5,048,278
Cutting head using line and plastic blades 2/20/96 5,491,962
Blades
Plastic blades with metal edge 2/20/96 5,491,962
Trademarks
Trademark - "Trim-A-Lawn" 11/15/88 1,512,348
Trademark - "Aeroline" 7/14/98 2,172,725
Trademark - "ElecTrim" 6/15/93 1,777,022
Patent Applications
Injection molded cutting line 4/28/97 #6631
The quick-change cutting head 5/23/97 #6635
Trademark Applications
Weed Blaster - (Name for blades) 6/03/96 R-3223
Weed Master - (Head & Blade) 9/10/96 R-3224
Easy Trim 3/24/98 R-3841
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