Invention Grant
- Patent Title: Hollow metal door
- Patent Title (中): 空心金属门
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Application No.: US12717672Application Date: 2010-03-04
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Publication No.: US08171700B2Publication Date: 2012-05-08
- Inventor: Michael Barnes
- Applicant: Michael Barnes
- Agency: Hill, Kertscher & Wharton, LLP
- Agent Gregory T. Ourada
- Main IPC: E04B1/00
- IPC: E04B1/00 ; E04C2/54
Abstract:
A hollow metal door using hollow structural sections with closed cross section, along with the method for making same, is described herein.
Public/Granted literature
- US20110214390A1 HOLLOW METAL DOOR Public/Granted day:2011-09-08
Information query
