Quick donning goggles for use with breathing mask
CA 2227701 C · Owner: Sword, Randall Jay · Inventors: Sword, Randall Jay; Imraan, Aziz; De Castro, Jose Tadeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A face mask for covering the nose and mouth of the wearer for supplying breathing gas thereto and a pair of strapless goggles which are easily and quickly donnable. The goggles are detachably attachable to the face mask by a tongue-and-groove connection wherein the tongue of the goggles is snapped into the face mask groove. Buttons are provided at the groove entrance for locking the tongue in the groove, the goggles being removable by depressing the buttons and sliding the tongue out over the depressed buttons. A face mask strap is coupled with hooks on the goggles frame for holding the goggles sealingly against the wearer's face. A vent is provided for supplying breathing gas to …
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 July 31, 1996 and granted September 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2018.
- 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.