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Expired Canadian patentCanada

Cast on mold inserts

CA 1103883 A · Owner: General Battery Corporation · Inventors: Oxenreider, Terry R.

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

Abstract of the Disclosure A novel mold having a plurality of channels for casting battery straps and posts on groups of battery positive and negative plates, the mold being equipped with a projection on at least one end of each of the channels the projections, extending into the channels of the mold toward the opposite end of the channel. The lengths of the mold channels are slightly less than the lengths of rows of positive or negative lugs so that the elements of the battery group are gently compressed or squeezed together. The end walls of the mold channels extend beyond the main mold body a portion of, the extended walls being beveled in a direction away from the mold channels.

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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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
  • 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 26, 1978
GrantedJune 30, 1981
Term endedJune 30, 1998
Patent numberCA 1103883 A
Classification (IPC)B22C9/22 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJuly 26, 1978Patent grantedJune 30, 1981Term endedJune 30, 1998

Sources & verification

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