Liquid dispensing container having ribbed construction
CA 1288068 C · Owner: Darr, Richard C. · Inventors: Darr, Richard C.; Slat, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plastic blow molded container (20) for holding liquids includes a rectangular body portion (22) having at least one rib (44,46) extending along each side wall of the container and having a construction that facilitates assembly of a unitary valve (42) to a dispensing spout (40) while maintaining flatness of side walls of the container during use. Each rib (44,46) has curved rib portions (48) extending along a pair of longer side walls (28). Each rib also has a relatively shallow rib portion (50) adjacent one shorter side wall (30) to prevent excessive compression thereof as the unitary valve (42) is pressed onto the dispensing spout (40). Each rib also has a relatively deep rib portion …
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 August 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
- 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.