Patent Yard Sign in
Expired Canadian patentCanada

Fastening arrangement comprising identical pairs of fastener elements

CA 1234276 A · Owner: Vermeulen, Thomas G. · Inventors: Vermeulen, Thomas G.; Mullen, Roy E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A pair of identical fastener elements are arranged in superposed, face-to-face relation to cooperatively define a plurality of elongated, peripherally enclosed channels for passage of end portions of strips of material which are thereby joined by the fastening arrangement. Each elementsd has a plurality of arms extending from a connection at one end with a central body portion to a free end, with opposing, spaced edges of the arms and body portions forming slots closed at one end and open at the other. Placing two of the elements in face-to-face superposed relation, with the arms of each element overlying the opposite end of the arms of the other element provides the peripherally enclosed …

Read the whole patent

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 March 22, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 22, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 2, 1984
GrantedMarch 22, 1988
Term endedMarch 22, 2005
Patent numberCA 1234276 A
Classification (IPC)A44B11/00

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedAug 2, 1984Patent grantedMarch 22, 1988Term endedMarch 22, 2005

Sources & verification

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