|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||052/309.13; 052/309.2; 052/787; 052/204; 049/DIG.002|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 3|
Window frames and sashes are molded of fabricated fibrous wool impregnated with a binder and coated with a resin which soaks into the surface to form a strong protective skin.
1. A window comprising a generally rectangular frame and a generally rectangular sash therein, the frame and sash each having straight top, bottom, and opposite side members, each of said members being made of glass wool impregnated with a binder, the binder-impregnated glass wool having a density of less than twenty pounds per cubic foot, each of said members having resin in addition to the binder incorporated in outer surface portions thereof and completely around its cross-sectional periphery, and each of said members being visually solid in cross sec...