Snow guard with reinforced snow-stop and gusseted brace
CA 2201650 C · Owner: Lee, Vicki Parker · Inventors: Lee, Vicki Parker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An economical three-component snow guard comprising (1) a laminar strap, (2) a snow-stop and (3) a gusseted brace is reinforced and its rigidity and compressive strength greatly improved. At the same time the resistance to, damage due to re-freezing of melted snow and internal weathering of the brace, is essentially eliminated. The disdavantages of a structurally similar prior artsnow guard are unexpectedly avoided by providing particularly improved structural features. The novel snow guard formed as a unitary structure of, foldable sheet metal less than 2 mm thick can withstand not only the forces exerted by an accumulated snow pack, but also the compressive force of a person's weight …
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 3, 1997 and granted May 22, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.
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.