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:
May. 16, 1995
Filed:
Dec. 17, 1993
Applicant:
Inventor:
Paul W Niehaus, Appleton, WI (US);
Assignee:
Eggers Industries, Neenah, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
181287 ; 181290 ;
Abstract
An acoustical door including a multiple ply core with individual plies separated from one another by intervening spacer networks. The networks provide generally uniform sound damping spaces between the core plies and are glued in position between the plies to bond the core together.