Hollow fiber package body and its production
CA 1107657 A · Owner: Toyo Boseki Kabushiki Kaisha (Trading Under The Name Of Toyobo Co. Ltd.) · Inventors: Matsumoto, Hiroshi; Kuzumoto, Hideshi; Tanaka, Tutomu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification discloses a hollow fiber package body for separation of fluid components comprising a core and layers of hollow fibers having a selective permeability to the fluid components arranged around said core said hollow fiber layers being formed by tape-like bundles of hollow fibers and composed of hollow fibers in nearly parallel relation to one another and in a flat state and, said hollow fiber bundles being arranged in multi-layers intersecting at a spot between one end and the other end of said package body. The apparatus has good separating ability and can be used for gas permeation liquid, permeation, dialysis, ultra filtration and the like.
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 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.