Cleaning apparatus
CA 2086082 C · Owner: Carl Freudenberg · Inventors: Sartori, Francesco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cleaning apparatus has a handle and a cleaning body of absorbent material mounted thereto. A squeezing means which is operable by a handle mounted linkage is associated with the cleaning body. The cleaning body is fastened to a curved adhesion surface which surrounds a first axis and the squeezing means includes a squeezing roller which is rotatable around a second axis and movable around the first axis. The apparatus has a simple and robust construction requiring only a small number of parts good operating characteristics over an extended service period and provides for a fast wetting and squeezing out of the cleaning body.
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 December 22, 1992 and granted November 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2014.
- 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.