Cleaning apparatus
CA 2039191 A1 · Owner: Gilliam, David Tovey · Inventors: Gilliam, David Tovey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus comprises a support frame 1 which carries a number of spray units 12. The frame 1 and spray units 12 form a pre-assembled unit which can be located in a pit 2 with flanges 7, 8 of the frame resting in a recess 9 around an upper edge of the pit. A grating 17 rests on the flanges 7, 8 and is formed with a series of apertures 18 through which fluid can be sprayed from spray heads 13 of the spray units. An oscillating mechanism 14 is provided which oscillates the spray heads simultaneously to ensure full cleaning of the vehicle underside. A pump 16 supplies fluid to the spray heads 13.
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 March 27, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2013.
- 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.