Adjustable wrench adapted for use as a hammer
CA 1091963 A · Owner: Charette, Joseph R. · Inventors: Charette, Joseph R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides for the adaptation of an adjustable wrench so that it may be used as a hammer and as a wrench without the use as a hammer causing undue damage to the mechanism required to enable the device to operate as a wrench. A hammer head is located on the crown portion of the wrench head. A passage opens inwardly of the hammer head through the side faces thereof to communicate with the adjustment screw passage to permit debris which accumulates at one end of the adjustment screw passage to be flushed therefrom.
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 December 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 1997.
- 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.