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Expired Canadian patentCanada

Article for simulation of smoking

CA 1313805 C · Owner: Schwartz, Hermann · Inventors: Schwartz, Hermann; Burger, Max

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

With the article, smoking is simulated by inhalation of nicotine without the action of heat. A carrier device (14), for example, a packing of spheres (20) for a, nicotine preparation capable of volatilizing at room temperature is incorporated in a container (10) with air inlet (11) and air outlet (12). The carrier device (14) forms a plurality of uninterrupted flow channels (21). The nicotine preparation (e.g. pure nicotine) is applied on the free and nonabsorbent surface of the carrier as a thin layer (22) leaving the channels (21) open. Glass or other sufficiently impervious inert, materials come into consideration as the material for the carrier device (14). Various shapes of carrier …

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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 February 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 1989
GrantedFebruary 23, 1993
Term endedFebruary 23, 2010
Patent numberCA 1313805 C
Classification (IPC)A24D1/00 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 29, 1989Patent grantedFeb 23, 1993Term endedFeb 23, 2010

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