Compact folding wrench
CA 2128952 C · Owner: J.H. Williams Company · Inventors: Knox, Robert Lawrence; Reddy, John Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compact, foldable wrench having a head for engaging a threaded fastener to be rotated and a, handle pivotally attached to the head for use in a folded position substantially surrounding the head or an open position projecting radially from the head. The head may contain an opening to receive a fastener head (e.g. may be in the form of a box wrench), or alternatively, it may house a ratchet mechanism adapted to receive a drive socket or other fastener drive. In another embodiment the, head may house a screw driver.
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 July 27, 1994 and granted March 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2016.
- 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.