Door opener aid
CA 1291855 C · Owner: Levine, Rennie B. · Inventors: Pettit, Glenn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Glenn PETTIT ABSTRACT, Small children of walking age and older have difficulty entering into homes with screen doors and the like when the screen door utilizes a plunger type latch set which requires on the one hand depression by thumb action of a plunger and the pulling of the handle in the opposite direction to open the door. A novel lever with arcuate fulcrum is disclosed which has from its fulcrum a depending handle portion, and on the other side of the fulcrum as the load lever, a distal projection, the end of which bears on the plunger. By pulling the force handle the load arm is engaged against the plunger and the door is opened with a single outward pulling action.
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 November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- 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.