Canadian application, no grantCanada
Method of drawing metal workpieces and drawing unit for a drawing machine
CA 2385648 A1 · Owner: Zillekens, Norbert · Inventors: Klingen, Hermann-Josef; Zillekens, Norbert; Hausler, Karl-Heinz
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drawing apparatus for drawing metal and articles has at last one drawing carriage and a linear motor complex which determines the pattern of movement of that carriage and hence of the drawing operation.
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 May 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 2002
GrantedNo grant recorded
Term endedMay 9, 2022
Patent numberCA 2385648 A1
Classification (IPC)B21C1/28 +2 more
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.