Patent ID: 7141730

Claim:
A method of producing electric guitar body, comprising: a. Creating a first mold for half of the desired shape of a guitar body; b. Creating a second mold for the other half of the desired shape of a guitar body; c. Injecting unsaturated polyester resins into the two respective molds; d. Introducing a layer of fiberglass material into the two respective molds; e. Administering the injection of polyester resins and fiberglass for a total of one to ten times; f. Adding reinforcement wood pieces into the space between the two respect molds when putting the tow molds together; g. Injecting heated unsaturated polyester resins to the joints between the two molds; h. Relatively rotating the two molds to cause the resins to be filled in between the joints evenly; i. Drawing out the excessive resins extruding out from the joints between the two molds; j. Injecting flexible polyester polyurethane foamed plastics to the inner space as defined by the two molds; and k. Securing the two molds together for all the materials inside to cure and form a guitar of desired shape.