Radiation detector
CA 1289273 C · Owner: Health Protection Agency · Inventors: Burgess, Peter Hamilton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radiation meter comprises two p-i-n photodiodes (1,3) each disposed to operate in a selfbiasing mode. The larger diode has an attenuating shield (33) and the outputs of the diodes are combined. The invention is intended for active personal dose meters for the same general purpose as Geiger-Muller tubes.
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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.