Environmental protection
CA 2105772 A1 · Owner: Nolf, Jean-Marie Etienne · Inventors: Nolf, Jean-Marie Etienne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of protecting a substrate which comprises: (a), providing an article having a first portion that has means allowing that portion to be deformed from a larger cross-sectional size to a smaller cross-sectional size and maintained at that smaller size and that comprises a heat-shrinkable material (b) positioning the, article such that a first portion encloses at least a part of the substrate, (c) deforming the first portion to the smaller cross-sectional size at which it corresponds closely to the part of the substrate, and (d) heat-shrinking the material to cause the first part to engage the substrate.
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 April 1, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 1, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 1, 2014.
- 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.