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Expired Canadian patentCanada

Musical reed

CA 1100342 A · Owner: Kilian, Frank A. · Inventors: Kilian, Frank A.

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 musical instrument reed for woodwinds and the like comprises a cane matrix having top and bottom surfaces. A thin coating comprised of fine particulate matter such as metal powder suspended in a carrier is deposited on the tip section and along the marginal edges of the reed so as to penetrate into the porous matrix. The heart or main vibratory section is not coated.

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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 May 5, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 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.
FiledAugust 29, 1978
GrantedMay 5, 1981
Term endedMay 5, 1998
Patent numberCA 1100342 A
Classification (IPC)G10D9/03 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedAug 29, 1978Patent grantedMay 5, 1981Term endedMay 5, 1998

Sources & verification

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