Illuminator for a refractometer
CA 1333230 C · Owner: Rainer, Edward H. · Inventors: Rainer, Edward H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An illuminator for use in a hand-held refractometer used for measuring the composition of substances. The refractometer comprising a hand-held body housing a prism and measuring assembly with a prism surface for supporting the substance to be measured wherein the, illuminator illuminates the substance to be measured. The illuminator comprises a light source positioned on or about the prism surface supporting a substance to be measured, and a power source for operating the light source. An operating assembly is also provided for manually activating the light source by selectively bringing it into communication with the power source. The light source power source, and operating assembly, form …
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 November 29, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 29, 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.