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Expired Canadian patentCanada

Device to eliminate squeaks in floors and method

CA 2115638 C · Owner: O'Berry, Jon Louis · Inventors: O'Berry, Jon Louis

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

Squeaks in a floor or stair are eliminated by driving screws in the area. At least one scored screw to be driven into the squeak area combines with a specialized driving bit, and an alignment and depth control fixture to eliminate the squeak. The alignment and depth control fixture can be used to direct the scored screw to the proper point while the driving bit can stop driving the screw at the desired position. After the alignment and depth control fixture is removed, the screw is broken at the prescored position. To minimize damage to an in place carpet a tape is, wrapped around the threads of the screw.

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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 February 14, 1994 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 1994
GrantedAugust 4, 1998
Term endedFebruary 14, 2014
Patent numberCA 2115638 C
Classification (IPC)F16B1/00

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 14, 1994Patent grantedAug 4, 1998Term endedFeb 14, 2014

Sources & verification

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