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Expired Canadian patentCanada

Loader bucket cutting edge with recessed bolt studs and method

CA 1081007 A · Owner: Caterpillar Tractor Co. · Inventors: Lanz, William E.; Stepe, Visvaldis A.

CIPO record

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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 loader bucket comprises a bottom wall having an elongated general purpose edge disposed forwardly thereon. A reversible cutting edge is bolted onto an underside of the general purpose edge, along with a plurality of laterally spaced adapters each having a hardened earthworking tip detachably mounted thereon. A plurality of laterally spaced bores are formed to a limited depth on the upper side of the cutting edge and the lower end of a bolt stud is welded within each bore. The stud extends upwardly through aligned holes formed through the cutting edge and the adapter to have a nut threaded on the upper end thereof. A continuous slot maybe formed along the …

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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 July 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJuly 8, 1980
Term endedJuly 8, 1997
Patent numberCA 1081007 A
Classification (IPC)E02F9/28

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJuly 8, 1980Term endedJuly 8, 1997

Sources & verification

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