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Expired Canadian patentCanada

Escalator hand-rail made of elastic material

CA 1289905 C · Owner: Tatai, Ilona · Inventors: Palotas, Laszlo; Subotics, Gyula; Tatai, Ilona

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

23305-1116, Abstract, A reinforced "C" shaped hand-rail for use with escalators, moving pavements and the likes made of elastic material. The invented hand-rail is injection moulded from polyurethane foamed polyurethane or other synthetic material possessing similar physical characteristics, so that at least one of its outside and inside is lamellated, the external or internal surface of the side opposite the lamellated surface is wavy conforming to the lamellae. The hand-rail is provided with reinforcing steel wire insert.

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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 October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2008.
  • 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 21, 1987
GrantedOctober 1, 1991
Term endedOctober 1, 2008
Patent numberCA 1289905 C
Classification (IPC)B66B23/00 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 21, 1987Patent grantedOct 1, 1991Term endedOct 1, 2008

Sources & verification

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