Closeable self-venting spout
CA 2545907 C · Owner: Nielsen, Roger B. · Inventors: Nielsen, Roger B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-spilling, detachable pouring spout is configured to transfer liquid from a non--vented filling container to a receiving container. The spout has a spout body defining a first hollow passageway extending from an open first end to an open second end wherein this open passageway having a generally tubular hollow inner conduit positioned within the first hollow passageway and defining a second hollow passageway. An intermediate sleeve is received in the spout and seals against portions of the spout body and the inner conduit so as to variously control the flow of materials out of the spout body preferably the flow of liquid out of the spout and air into the spout as a venting system. 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 May 5, 2006 and granted January 28, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 5, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.