Dispensing bottle with internal flow rate restriction system
CA 2028607 C · Owner: Chibret International · Inventors: Lataix, Gilbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sterile packaging assembly (100) for dispensing a liquid in drops comprises a main body (101) of plastic material, having a top portion (103) with an outside thread for receiving a screw cap (104) and, containing a flow rate restriction system (105) for controlling drop formation. The flow rate restriction system is positioned substantially on the axis of the main body and is held in position by a constricted portion (106) of the top portion (103) of the main body. The invention is particularly applicable to sterile packaging of pharmaceutical substances such as eye drops.
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 October 25, 1990 and granted October 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 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.
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.