Manual sander
CA 2074581 A1 · Owner: Milkie, Terry H. · Inventors: Milkie, Terry H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A manual sanding tool has a block for holding a sheet of sand paper and a housing which may be attached to the block. The block has two ridges each with a convex top surface. The, two ridges are proximate opposed sides of the block; a shaft protects from the block inwardly of, and adjacent to each ridge. An inverted box shaped member associated with each ridge has an elongate slot which receives the shaft such that the box member may be wiped over the top of the ridge to a position on the back surface of the block. In wiping over the top surface of the ridge, the box shaped member pulls on the end of any sandpaper between it and the ridge in order to tighten the sandpaper on the block. A …
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 23, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2014.
- 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.