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Expired Canadian patentCanada

Safety net arrangement for multi-floor buildings under construction, and method

CA 1291735 C · Owner: Nussel, Inc. · Inventors: Nusbaum, Arthur

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

A safety net arrangement for and a method of protecting workmen and passersby from injury during the construction of a multi-floor building includes the raising and lowering of a fully deployed safety net along a plurality of upright guide rails attached to the building.

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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 November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 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.
FiledJune 13, 1989
GrantedNovember 5, 1991
Term endedNovember 5, 2008
Patent numberCA 1291735 C
Classification (IPC)A62B99/00 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJune 13, 1989Patent grantedNov 5, 1991Term endedNov 5, 2008

Sources & verification

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