Patent Yard Sign in
Expired Canadian patentCanada

Radiation apparatus

CA 1103759 A · Owner: Mutzhas, Maxim. F. · Inventors: Mutzhas, Maxim. F.

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 radiation apparatus for cosmetic photobiological and/or photo-, chemical purposes containing at least one ultraviolet ray source and devices for operation for the production of the ignition voltage and operating current and a filter device for emitting rays in the region of 320 nm to 450 nm and for cutting out short wave rays below 320 nm and long wave rays above 800 nm and preferably above 450 nm.

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 June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.
FiledMarch 2, 1977
GrantedJune 23, 1981
Term endedJune 23, 1998
Patent numberCA 1103759 A
Classification (IPC)A61N5/06 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedMarch 2, 1977Patent grantedJune 23, 1981Term endedJune 23, 1998

Sources & verification

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