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Expired Canadian patentCanada

Wall-mounted over-bed lighting fixture

CA 1298573 C · Owner: Miller, David H. · Inventors: Miller, David H.

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

The housing for the fixture is mounted on a wall over the patient's bed. The housing accommodates a first non-rotatable fixture which directs light from fluorescent tubes downward through a conventional flat prismatic lens. There is also a longitudinally extending lens mounted within the outline of the housing and rotatable by means of handles at either end so that light from a second set of fluorescent tubes may be adjusted to function as a reading lamp for the patient, as an examining light at different locations of the patient's body and as a room illumination source, the intensity of room illumination being adjustable. A safety switch is moved to "off" position when the housing is …

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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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 16, 1989
GrantedApril 7, 1992
Term endedApril 7, 2009
Patent numberCA 1298573 C
Classification (IPC)F21V17/02 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJan 16, 1989Patent grantedApril 7, 1992Term endedApril 7, 2009

Sources & verification

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