Chemical lighting device
CA 1100923 A · Owner: American Cyanamid Company · Inventors: Vega, Mary-Louise; Heffernan, William R.; Beachem, Michael T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for providing chemiluminescent light by the chemical reaction of suitable compounds in the presence of a fluoresce? compound is disclosed, the device being a combination of a chemical lighting wand a hand-held, rigid, device for easy activation of said wand and bias means for, affixing said hand-held device to said wand.
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 12, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 1998.
- 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.