Substances having carcinostatic and immunostimulating activity, process for preparing the same and carcinostatic agent containing the same
CA 1184864 A · Owner: Toyama Chemical Co. Ltd. · Inventors: Yamamoto, Yoshiko; Maeda, Toyoo; Yasuda, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two piece binder is disclosed having substantially symmetrical clamping members hinged together along first edges thereof so as to be rotated to grasp sheet material between second edges thereof by the rotation of wing nuts mounted on one side of the two piece binder and operably coupled to the two clamping members. The two piece binder disclosed advantageously provides a symmetric two piece binder with a side mounted tensioning wing nut.
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 April 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 2002.
- 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.