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:
Jan. 19, 1982
Filed:
Jun. 03, 1980
Applicant:
Inventors:
Harold W Schaefer, Bloomington, IL (US);
Joyce K Thomas, Lexington, IL (US);
Samuel E Hohulin, Lexington, IL (US);
Assignee:
National Union Electric Corporation, Greenwich, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55369 ; 15323 ; 15351 ; 55378 ; 55380 ; 55381 ;
Abstract
A vacuum cleaner has an elongated porous outer bag for holding a filter bag over an air outlet. A hanger within the outer bag is positioned to suspend the outer bag from the vacuum cleaner, as well as to hold a pocket within the outer bag, so that spare filter bags may be held within the porous outer bag.
Schaefer, Harold. (1982). Vacuum cleaner bag assembly (U.S. Patent No. 4311493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4311493
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile