Apparatus for compressive shrinking of fabric having an improved impact blade
CA 2049985 C · Owner: Catallo, Frank · Inventors: Catallo, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved apparatus for the compressive shrinking of fibrous materials is disclosed. The apparatus uses a system of moving surfaces of different speeds cooperating with a confining means spaced from said movable surface or surfaces to cooperate to form a stuffing chamber for compaction of the fibrous material. An improved impact blade is provided to facilitate the compression of said fibrous material and the blade includes an apparatus for achieving optimum straightness of the blade among the benefits provided.
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 March 12, 1991 and granted June 20, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2013.
- 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.