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Expired Canadian patentCanada

Magazine for tools and/or workpieces

CA 2070140 C · Owner: Erowa Ag · Inventors: Obrist, Basil

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The magazine, having a fixed place in a manufacturing plant, is intended to cooperate with at least one machining device and with a handling device associated with said machining device in order to automatically exchange tools and/ or workpieces on said machining device. The magazine comprises a rotating rack having a plurality of storing planes mounted upon another on a support for bearing the objects to be handled. Said rotating rack is designed as a separate constructional unit which is exchangeably inserted in a stationary part of the magazine, which stationary part comprises means for rotating said rotating rack. In this manner, the space needed by the auxiliary devices in the …

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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 June 1, 1992 and granted August 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 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.
FiledJune 1, 1992
GrantedAugust 15, 2000
Term endedJune 1, 2012
Patent numberCA 2070140 C
Classification (IPC)B23Q3/15 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 1, 1992Patent grantedAug 15, 2000Term endedJune 1, 2012

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.