Universal wiper refill
CA 1100715 A · Owner: Cooper Automotive, Inc. · Inventors: Mohnach, Michael G.; Harbison, William H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wiper blade is comprised of a superstructure for applying pressure to a backing strip which carries a resilient wiping element in contact with a surface to be wiped. The backing strip has projections which engage with the superstructure in such a way that pressure from the superstructure is transmitted through the projections to the backing strip and on through to the wiping element.
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
- Granted May 12, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 1998.
- 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.