Drag reducer for rear end of vehicle
CA 2004059 A1 · Owner: Labbe, Francois P. · Inventors: Labbe, Francois P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drag reducer adapted to be mounted on the rear face of a land vehicle. It is characterized by a large piece of flexible material adapted to be tightly fixed around the periphery of the rear surface adjacent the lateral faces of the truck. The piece of material has an area larger than the rear face of the truck so as to display a convex surface when fully extended. The drag reducer has one and preferably two openings located adjacent the periphery of the rear face of the truck and a tubular extends from each of the said opening in a direction towards the front of the truck so that upon forward movement of the truck, air is automatically introduced in said tubular members and projected …
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 November 28, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2011.
- 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.