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:
Sep. 24, 1991
Filed:
Apr. 24, 1990
Applicant:
Inventor:
Dale C Barnett, Marietta, OH (US);
Assignee:
Forma Scientific, Inc., Marietta, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47B / ;
U.S. Cl.
CPC ...
312319 ; 312209 ; 49445 ; 160190 ;
Abstract
A biological safety cabinet vertical lift assist system employing one or more pneumatic springs operatively connected to the cabinet and sliding window to counterbalance the window's weight to provide a substantially constant brake force spring resulting in smoother and easier operation of the window.
Quick Actions:
Barnett, Dale. (1991). Biological safety cabinet with window counterbalance (U.S. Patent No. 5050943). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5050943
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile