Strap wrench
CA 2029920 A1 · Owner: Easco Hand Tools, Inc. · Inventors: Greenawalt, Steven C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A strap wrench for engaging a workpiece. The strap wrench includes a housing having a first side a, second side, a top and a bottom. A cam means is pivotally mounted in the housing. The cam means has a first end and a second end and, when pivoted the first, end and the second end of the cam means approach the respective sides of the housing. A flexible strap means having a first end, a second end and an intermediate portion is provided. The ends of the strap means are received in the housing passing, through the housing to form a loop in the intermediate portion of the strap means. The cam means may be pivoted to engage the strap means between the respective ends of the cam means and the …
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 November 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2012.
- 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.