Pipeline repair system and method of installation
CA 2580095 C · Owner: Topf, Henry E. Jr. · Inventors: Borland, Robin Neil; Topf, Henry E. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of repairing a pipeline and pipeline repair system (100 200) that , includes a sleeve (110, 210) adapted to permanently enclose an outer surface of a longitudinal section (12) of a pipeline (10) having a defect (20). The sleeve (110) includes two or more longitudinal segments of a cylinder (112 114, 212, 214) joined at the longitudinal edges (150 250) to form a sleeve , (110, 210) with a first and second radial ends (156 158, 252, 254). The , sleeve (110, 210) is sealed at the radial ends (156,158 252, 254) forming an , enclosed annular space (30) between the pipeline (12) and the sleeve (110 210). An injection port assembly (192) on the sleeve is adapted for temporary …
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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 September 26, 2005 and granted May 21, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.