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Expired Canadian patentCanada

Dragee-making drum

CA 1180951 A · Owner: Huttlin, Herbert · Inventors: Huttlin, Herbert

CIPO record

Overview

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

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Abstract From the Canadian patent

A b s t r a c t, A dragee-making drum (10) whose axis of rotation, (A) is at least approximately horizontal has an at, least approximately cylindrical shell (12) and two at least approximately frustum-shaped end wall portions (14) adjoining either side of the shell. These end wall portions (14) extend into the space enclosed by the shell (12) and terminate in annular zones (16) whose axial distance (C) from one another is considerably smaller than the width (B) of the shell (12). It is thereby achieved that the dragee-making material is spread between the frustum-shaped end wall portions (14). This gives rise to frictional forces which in, addition to the frictional forces that are caused …

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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

  • Granted January 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 2002.
  • 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 7, 1982
GrantedJanuary 15, 1985
Term endedJanuary 15, 2002
Patent numberCA 1180951 A
Classification (IPC)B05C3/08 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJune 7, 1982Patent grantedJan 15, 1985Term endedJan 15, 2002

Sources & verification

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