Dosimeter
CA 1301959 C · Owner: Ueno, Keiji · Inventors: Ueno, Keiji; Katanosaka, Akisato; Matoba, Noriko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dosimeter comprising a support having provided thereon a radiation-sensitive layer which comprises (a) a polymer containing halogen atoms or a polymer containing acetic acid groups and (b) a pH-sensitive indicator dye. the dosimeter provides an easy determination of exposure dose by color change, even at high and law exposure doses.
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 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.
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.