Easy insert composite tube cleaner
CA 2246178 C · Owner: Saxon, Gregory J. · Inventors: Saxon, Gregory J.; Krysicki, Jerzy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite tube cleaner has a shaft, nose portion and tail portion, and a plurality of metallic scraper devices spaced along the shaft. The scraper devices are U-shaped and have at least two leg portions which terminate as scraping sections. A plastic sheath is secured to and encloses the scraping sections and at least a portion of the leg portions the sheath preferably, having at least one inclined surface along the leg portion which extends outwardly to the scraping section.
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 September 1, 1998 and granted November 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2020.
- 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.