Expired Canadian patentCanada
Quick-release dental light handle
CA 2007298 C · Owner: Jones, Arthur-Lee · Inventors: Mcgaha, George; Jones, Arthur-Lee
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unitary, quick-release handle for use on dental medical and similar lighting fixtures has a quick-release feature which permits the handle to be quickly and easily removed and then placed in an autoclave for purposes of sterilization.
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 January 8, 1990 and granted December 14, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 8, 1990
GrantedDecember 14, 1993
Term endedJanuary 8, 2010
Patent numberCA 2007298 C
Classification (IPC)F21V21/36 +1 more
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.