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Expired Canadian patentCanada

Laue camera

CA 1262836 C · Owner: Schiller, Claude · Inventors: Schiller, Claude

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

PHF. 85.508 10, ABSTRACT:, A Laue camera incorporating an X-ray source represented by its focus and defined by its two focal dimensions and its exposure angle, a photographic film holder, a collimator taking the form of two diaphragms and placed on the path of the rays between the source and the film, but close to the latter, and characterized by the fact that the X-ray source is used at an exposure angle such that its apparent focal dimensions are of the same size, that the diameter of the openings in the diaphragms is virtually of the same size as the two apparent focal dimensions of the source that this size, being smaller than the average radius desired for a spot in the diffraction …

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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 November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 4, 1986
GrantedNovember 14, 1989
Term endedNovember 14, 2006
Patent numberCA 1262836 C
Classification (IPC)G01N23/20

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedFeb 4, 1986Patent grantedNov 14, 1989Term endedNov 14, 2006

Sources & verification

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