Safety closure
CA 1237463 A · Owner: Palsson, Johannes Saemundur · Inventors: Palsson, Johannes S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
On medicine bottles it is known to use a safety closure consisting of a closure cap with a cylindrical skirt having a thin-walled portion through which a resilient arresting means disposed on the bottle neck can be actuated so that an arresting face thereon can be pushed clear of a stop face at one end of the thin-walled portion of the skirt, whereby the closure cap can then be rotated without obstruction for removal. The idea of the invention is to use a safety closure of similar type to protect a cabinet door so that small children cannot open it.
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 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.