Self-sustaining compressed length of thin-walled tubing
CA 1077773 A · Owner: Union Carbide Corporation · Inventors: Sheridan, Arthur L.; Marbach, Walter V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-sustaining length of thin-walled flexible tubular material comprising in combination a length of pleated and longitudinally compressed thin-, walled, flexible tubular material and a tubular elastic sheathing material stretched and tightly drawn about the periphery and at least a portion of the terminal pleats of said length of compressed, pleated tubular material totally retaining said compressed length of pleated thin-walled, flexible tubular material therein whereby a self-sustaining length of said thin-walled flexible tubular material is formed. 1.
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 May 20, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 1997.
- 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.