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Expired Canadian patentCanada

Multi-purpose crampon

CA 1164208 A · Owner: Peyser, Leonard F. · Inventors: Peyser, Leonard F.

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 crampon or creeper attachment (10) for hiking shoes or boots having identical separate sole and heel toothed plates (16,18) and are adjustably interconnected by a flexible sole strap (52) to fit the footgear. The sole plate (16) includes means (20) for adjustably attaching it to the toe portion of the shoe; the heel plate (18) includes a short heel strap (50) and strap-like means (28) which interconnect with a strap lying across the wearer's instep (40). The interconnecting and securing straps are formed from a rugged material such as a neoprene and nylon laminate and are provided with adjustment means for keyhole slots (32, 56) in the straps and headed rivets (26 54) secured to the heel …

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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 March 27, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 14, 1981
GrantedMarch 27, 1984
Term endedMarch 27, 2001
Patent numberCA 1164208 A
Classification (IPC)A43B3/10 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedJuly 14, 1981Patent grantedMarch 27, 1984Term endedMarch 27, 2001

Sources & verification

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