with fixed wooden frames

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    INSULATED ATTIC HATCH

    • Publication number 20170362885
    • Publication date Dec 21, 2017
    • Mark JEJINA
    • E04 - BUILDING
  • Information Patent Application

    PRE-HUNG DOOR ASSEMBLY AND METHOD OF INSTALLATION

    • Publication number 20080127564
    • Publication date Jun 5, 2008
    • Pella Corporation
    • Cordell R. Burton
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS