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. 23, 1989
Filed:
Feb. 04, 1988
Applicant:
Inventor:
Karl J Kallenberg, Richfield, MN (US);
Assignee:
Lifetouch National School Studios, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
353120 ; 353108 ;
Abstract
A slide carrier and cooperating guide assembly are disclosed which provide for quick location and precise positioning of film transparencies at a determined focus point in a projector. Slide carriers introduced to the guide assembly are readily interchangeable to allow easy selection of a desired film transparency for projection.
Kallenberg, Karl. (1989). Film transparency slide carrier and conveyor system for front screen (U.S. Patent No. 4832482). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4832482
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile