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:
Jul. 30, 1996
Filed:
Jul. 05, 1994
Applicant:
Inventors:
Robert D Scott, West Covina, CA (US);
Tom Gill, Anaheim, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ; B01D / ;
U.S. Cl.
CPC ...
525068 ; 5250606 ; 5250607 ; 5274213 ; 523021 ; 52775 ; 52781 ; 55355 ; 55483 ; 55484 ;
Abstract
A clean room ceiling having an air impervious filter support and air flow path-defining filters supported by the support, and a permanently fluid, nonevaporative non-air-flow-displaceable gel blocking air flow past the support except along the filter defined air path.