Radiation protection material
CA 2003877 A1 · Owner: Lilley, Martin J. · Inventors: Yaffe, Martin J.; Mawdsley, Gordon E.; Lilley, Martin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An energy absorption material especially in, the form of apparel, is disclosed. The material comprises a layer of a polymer composition formed from 7-30% by weight of a specified polar polymer 0-15% by weight of a plasticizer and 70-93% by weight of an inorganic composition. The inorganic composition is formed from at least two elements as defined, or compounds thereof, which attenuate a range of energy. The materials provide superior protection against radiation than lead in the degree, of protection and/or the weight of the material required to provide the protection. The material may be used, in particular, for protection against x-rays, especially in the form of apparel e.g for …
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
- Filed November 24, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 24, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2011.
- 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.