Tape cassette reel
CA 1258527 A · Owner: Sony Corporation · Inventors: Makino, Masahiro; Sasaki, Shin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reel flange for a tape reel in a tape recording system which has an annularly-shaped projecting portion which merges into a recessed annularly shaped control portion. A plurality of inwardly-directed rib members extending inwardly from the projecting portion into the recessed central portion to aid in the alignment of the reel flanges when stacked during manufacture. Openings in the recessed centreal portion receive mating pins located on a cylindrical projecting portion intermediate the flanges of the reel to secure the flange to the projection portion. The flange further defines a stacking-pin receiving opening with an alignment lug. The thickness of the projecting portion of the reel …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 15, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 15, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.