Medical lavage apparatus
CA 2088069 C · Owner: Davis, Richard C. · Inventors: Davis, Richard C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved medical lavage apparatus (10) includes guide/lock/stop tabs (122) which are inserted through a medical lavage syringe housing (20) into irrigation and aspiration bores (30 34) , thereof for engaging longitudinal ribs (68a-d 69a-d) of irri-, gation and aspiration plungers (24 26) to prevent their rotation and a , circumferential latch rib (134a) of the aspiration plunger for locking the aspiration plunger in an inserted position. The tabs also contact end circumferential ribs (70') of the plungers for providing stops to prevent the plungers from being removed from their respective bores. The tabs comprise two legs (126) which straddle the longitudinal ribs, with a longitudinal …
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 September 17, 1991 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2013.
- 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.