Reinforced therapeutic tube
CA 1288066 C · Owner: Kuraray Co. Ltd. · Inventors: Akasu, Hiroyuki; Takagi, Toshiaki; Yamada, Yoshihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a reinforced therapeutic tube comprising a tubular body member having a spirally formed reinforcing material embedded into the tubular wall and a tubular end portion without reinforcing material which is axially, integrally connected to at least one end of the reinforced tubular body portion. According to the novel feature at least the end of the, spirally formed reinforcing material adjacent the integrally connected end portion is bent axially inwardly of the end of the reinforced body portion a distance such that it engages at least one adjacent spiral turn of the reinforcing material, with the tip of the bent-back portion being encased within the wall …
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 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 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.