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Expired Canadian patentCanada

Collector box with baffle system for use in spray-on fiber recycling system

CA 2226341 C · Owner: Church, Joseph T. · Inventors: Lytle, C.E. Butch; Church, Joseph T.

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 system and corresponding method are disclosed for blowing or spraying loose-fill insulation (e.g. fiberglass) into wall cavities and the like the system, including a fiber recovery or recycling subsystem that vacuums up overspray or waste fibers and forwards them back toward the hopper. A fiber collector device having a fiber inlet and outlet is mounted above the hopper and, receives the recovered waste fibers and utilizes a baffle system to redistribute the recovered fibers back into the hopper so that they mix with virgin fibers therein. The mix of recovered and virgin fibers is then blown through the blow hose toward a wall cavity or the like to be insulated.

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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 January 6, 1998 and granted June 11, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 6, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 6, 1998
GrantedJune 11, 2002
Term endedJanuary 6, 2018
Patent numberCA 2226341 C
Classification (IPC)E04F21/06 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJan 6, 1998Patent grantedJune 11, 2002Term endedJan 6, 2018

Sources & verification

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