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. 25, 1989
Filed:
Sep. 17, 1987
Noboru Uemura, Odawara, JP;
TDK Corporation, Tokyo, JP;
Abstract
In a magnetic tape cassette comprising an upper half housing section with a see-through window, a lower half housing section, a pair of hubs on which a length of magnetic tape is wound and which are rotatably fitted in between the two half housing sections, and a stopper located between one edge of the tape wound on the hubs and the upper half housing section and having pawls engageable with given points of the hubs, the stopper has a flap portion slidable along the inner side of the see-through window and which is exposed when the pawls are engaged with the hubs. The stopper is slidable perpendicularly to the axes of rotation of the hubs. It is colored as classified by the grade, use, or type of the magnetic tape involved. Its exposed area visible through the see-through window is at a maximum when the stopper is engaged with the hubs.