Ophthalmic package and delivery device
CA 2176583 C · Owner: Merck Sharp & Dohme Corp. · Inventors: Lifshey, Arthur L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ophthalmic package (1) is formed by injection molding having a thick wall with, a limited flexible area (22) which limits internal displacement of the walls of the package (1) when squeezed to thereby deliver a certain amount per squeeze. The package has an integrally molded dropper tip, as well as an integrally molded break-off or puncture diaphragm within the tip. At the end of the package opposite the dropper tip is a bottom closure cap (3) which may be snapped into the package. The closure cap (3) includes a "displacement" member of a certain size to extend into the interior of the package (1) thereby taking up space and in so doing reducing the internal volumetric capacity of the …
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 December 19, 1994 and granted November 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2016.
- 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.