Dispensing apparatus
CA 1104532 A · Owner: Containaire, Inc. · Inventors: Mueller, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Dispensing apparatus for a flexible container including a closure for the container and an expansible bladder associated with the closure and adapted to fit within the container to expand and displace the dispensed contents. The closure has two openings one at which it, is attached to the container and the other forming an outlet for dispensing. A conduit extends from the bladder into the closure and communicates to the exterior of the closure and container through one of the two openings. The outlet opening is constructed to allow the contents to flow only in a direction from the container during use and a check valve allows flow through the conduit only into the bladder.
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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.