Automatic lid-lifting and flushing device for water closet
CA 1054306 A · Owner: Liu, Yu-Hsiang · Inventors: Liu, Yu-Hsiang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for automatically controlling the lid and seat of a water closet, and the flushing operation. The device includes an electric circuit which activates a mechanical system for opening and closing the lid, or both the lid and the seat. The system includes a mechanism for automatically flushing the water closet when the lid is being closed.
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 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 1996.
- 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.