Expired Canadian patentCanada
Cd record changer
CA 1307047 C · Owner: Geiger, Erich · Inventors: Geiger, Erich
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the case of a CD record changer the, positioning of the play back unit relative to the magazine containing the records, necessary for the removal of different records, is controlled, according to the invention, by a coupling operating optically.
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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 28, 1987
GrantedSeptember 1, 1992
Term endedSeptember 1, 2009
Patent numberCA 1307047 C
Classification (IPC)G11B17/22 +2 more
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.