Vehicle washing apparatus
CA 2075377 C · Owner: Ennis, G. Thomas · Inventors: Ennis, G. Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A deep pile, fur-like material is used in an automated vehicle washing apparatus to simulate a vehicle hand wash. The vehicle washing apparatus (30) uses a resilient drum constructed of a pair of spaced apart disks (32, 34) and an elastic cord (46) which extends between the disks around the circumference of each disk. A cover (54) is wrapped around the cord (46), and over a portion of the plates (32, 34), so that the cover (54) rotates with the plates (32, 34), which rotate with the shaft (20). The cover includes a plurality of shingles (70) which extend radially outwardly under centrifugal force. The shingles (70) are preferably made of a deep pile fur-like material. Alternatively a …
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 January 17, 1991 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 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.