Housing pack for photographic processing solution
CA 1289107 C · Owner: Takabayashi, Naoki · Inventors: Kobayashi, Kazuhiro; Takabayashi, Naoki; Koboshi, Shigeharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The prsent inventioin provides a container for containing a photographic processing solution which comprises a housing member and a partion member, thereby the container is devided in-to two chambers of which the first chamber is prepared for containing the photographic processing solution and the second chamber is prepared for collecting the waste solution. One part of the housing member forming the first chamber comprises a oxygen shelter for restraining oxygen permiation therethrough into the first chamber below 20 ml/m2/24hrs. The second chamber has a solution-absorbing material therein for facilitating the collection of the waste solution.
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 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 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.