Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Security door D307479 Security door Patent Drawings: Inventor: Bennett, et al. Date Issued: April 24, 1990 Application: 07/087,622 Filed: August 20, 1987 Inventors: Bennett; Richard (Detroit, MI) Davis; Damon A. (Ann Arbor, MI) Evans; Steven B. (Detroit, MI) Assignee: Daris Design Company (Detroit, MI) Primary Examiner: Word; A. Hugo Assistant Examiner: Clark; Doris Attorney Or Agent: Gossett; Dykema U.S. Class: D25/152; D25/48; D25/53 Field Of Search: D25/47; D25/48; D25/58; D25/60; D25/61; D25/59; D25/152; D25/153; D25/154; D25/156; 49/50; 49/54; 49/55; 49/56; 49/57; 49/399; 49/504; 52/106; 52/477; 52/660; 52/633; 52/656; 52/663 International Class: U.S Patent Documents: 1846762; 2948366; 3895669; 4810999 Foreign Patent Documents: Other References: Abstract: Claim: The ornamental design for a security door, as shown and described. Description: FIG. 1 is a top plan view of a security door showing our new design the bottom being a mirror image thereof; FIG. 2 is a front elevational view thereof; FIG. 3 is a left end elevational view thereof; FIG. 4 is a rear elevational view. The broken line showing of the structural indicia is for illustrative purposes only and forms no part of the claimed design. * * * * *       Recently Added Patents Sinusoidal connection band without stabilizing plate Child-resistant closure having a non-child-resistant mode of operation Liquid crystal display device and electronic apparatus Frequency modulator and frequency modulation method Phosphite dehydrogenase mutants for nicotinamide cofactor regeneration Trim tab Apparatus and method for managing data   Randomly Featured Patents Device and method for remote sensing of rock movements in mines Receptacle for a constructional building set Generation of seed particles Active noise control system Golf putter face Harmonic formant filter for an electronic musical instrument Bi-spectral filtering of electrocardiogram signals to determine selected QRS potentials Regenerable high capacity sorbent for removal of mercury from flue gas Sublimation-type thermal image transfer recording medium and thermal image transfer recording method using the same Using prioritized interrupt callback routines to process different types of multimedia information © 2006-2008 PatentGenius. All Rights Reserved.