Draw module
CA 2076413 A1 · Owner: Davies, John · Inventors: Davies, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The multi-stage draw module (20) comprises a number of draw roller pairs (22,23,24) comprising at least one upper and at least one lower draw roller pair in a staggered arrangement relative to a theoretical plane (P2) of reference; each draw roller pair (22,23,24) includes two rollers (221,222,231,232;241,242) having essentially parallel axes and essentially the same axial length and all, draw roller pairs have essentially parallel axes arranged substantially perpendicularly to the plane (P2) of reference; the staggered arrangement of the draw roller pairs is defined essentially by a longitudinal offset of each upper draw roller pair relative to an adjacent lower draw roller pair; 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 August 19, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 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.