Padding & chocking apparatus for pipe joints and/or pipe sections
CA 2204286 C · Owner: Ellett, William A. Sr. · Inventors: Blalock, James; Ellett, William A. Sr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pipe support apparatus including a length of flexible webbing having a first receptacle formed at one end and a second receptacle formed adjacent an opposite end of the webbing a first, rigid member received within the first receptacle and a second rigid member received within the second receptacle. Each of the first and second rigid members has a height greater than a thickness of the webbing. The length of webbing defines a pipe receiving surface between the first and second rigid members. Each of the first and second receptacles is a loop having an opening suitable for slidable receipt of the first and second rigid members. The first and second rigid members are cylindrical members …
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
- Filed May 2, 1997 and granted June 8, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2019.
- 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.