Protecting the outer surface of cylinders for containing fluid
CA 2272522 A1 · Owner: Tweedle, Mark H. · Inventors: Tweedle, Mark H.; Castellarin, Sandro J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of protecting the outer surface of a cylinder for containing fluid. The method includes the steps of providing a cylinder for containing fluid providing, a heat shrinkable polymer sleeve fitting the polymer sleeve around the cylinder, and, applying heat to the sleeve to heat-shrink the sleeve into engagement with an outer, surface of the cylinder. The invention also provides a polymer sleeve used in the, method and a cylinder assembly resulting from the method.
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 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2021.
- 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.