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:
Dec. 24, 1996
Filed:
Mar. 07, 1995
Doreano De Marco, Belluno, IT;
Procond Elettronica S.p.A., Belluno, IT;
Abstract
In an air purifier apparatus, an electrostatic filter is detachably and operatively connectable to an electrical contact which in turn is connected to a terminal of a power supply. The electrostatic filter is also detachably and operatively connectable to a second electrical contact which is connected to an alarm device. When the electrostatic filter is properly mounted within the air purifier apparatus, the two electrical contacts are short-circuited, thus electrically connecting the power supply to the alarm device through the electrostatic filter. The alarm device provides an indication that the electrostatic filter is properly mounted within the air purifier apparatus when energized by the power supply.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile