Expired Canadian patentCanada
Colored contact lens and methods for the production thereof
CA 1298150 C · Owner: Med Optics Corporation · Inventors: Magdassi, Shlomo
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides an opaque contact lens comprising a lens body constructed of polymer and solid latex polymer particles directly bound to at least a portion of a surface of the lens and a method for the production thereof.
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 March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 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.
FiledJune 17, 1988
GrantedMarch 31, 1992
Term endedMarch 31, 2009
Patent numberCA 1298150 C
Classification (IPC)G02C7/04 +2 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.