Disc film developing treatment apparatus
CA 1287515 C · Owner: Nishimoto, Kanichi · Inventors: Nishimoto, Kanichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hot water bath having a constant temperature device for heating a plurality of treatment liquids in a plurality of treating liquid storing baths to a temperature suitable for developing disc films such as a specified temperature or the like is communicated with another hot water bath surrounding a single disc film treating tank by way of water supply pipes and water return pipes. Certain treatment liquid is supplied from the treating liquid storing baths to the disc film treating tank in accordance with a predetermined order and the thus supplied treating liquid is discharged therefrom at every time when an intended treating is completed.
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 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.