The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2008
Filed:
Dec. 22, 2003
Roger F Joyce, Guilford, CT (US);
Lawrence R Jones, Conifer, CO (US);
Roger F Joyce, Guilford, CT (US);
Lawrence R Jones, Conifer, CO (US);
The Bilco Company, West Haven, CT (US);
Abstract
Cellar or bulk head doors having sidewalls are provided which are made of a polymer and which are strong, durable, attractive, virtually maintenance free, easily assembled, have connection and anchorage points which allow the door assembly to be used over a wide temperature range without damage to the polymer parts making up the assembly and which has an opening preferably in one or both of the sidewalls for inserts such as a window, louver, screen or blank and which insert may be easily changed without tools for the purpose of providing light, ventilation, or security. The doors also may be extended from the structure being enclosed using opposed vertical extenders mated with a horizontal extender.