Magnetic tape cassette
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 16, 1994
Grant Date -
N/A
app pub date -
Nov 10, 1992
filing date -
Nov 13, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A magnetic tape cassette which solves the problem of deformation of a guide groove due to a sink mark formed when the neighboring portions of a shaft insertion opening are reduced in thickness to reduce the weight of the cassette case. A tongue-shaped projection is formed adjacent to a central guide groove, the projection including a recessed portion, such as a circular recess or a lateral notch, for reducing the thickness of the projection.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully