Protection barrier against ionizing rays of the _type and/or x-rays
CA 1337845 C · Owner: Kersten, Jean · Inventors: Carlier, Christian; Kersten, Jean; Lombard, Etienne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Protection barrier against ionizing rays of the .gamma. type and/or X-rays comprising a flexible sheet (2) in which particles (3) of an agent absorbing said rays are dispersed. The absorbing agent is selected among bismuth and the oxides, hydroxide and salts of bismuth and is particularly bismuth oxide of the formula Bi2O3 having a particle size of less than 10 microns (figure).
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 January 2, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.