Expired Canadian patentCanada
Separating sheetlike structures from piles
CA 1329629 C · Owner: Melzer, Jaroslav · Inventors: Melzer, Jaroslav
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: Individual sheetlike structures are efficiently lifted from a pile by means of a vacuum lifter and deposited again at a processing station, the pile including as an alternate interlayer a sheet of air impermeable material.
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
- Granted May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 16, 1989
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329629 C
Classification (IPC)B65H3/46 +1 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.