Tamper-resistant cap for wide mouth jar
CA 1312307 C · Owner: Bullock, Joseph John Iii · Inventors: Bullock, Joseph John Iii; Tackles, George; Hatch, Wayne Lawrence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cap of a type having a top disk with depending outer and inner skirts between which the neck of the jar fits is disclosed. The inner surface of the outer skirt and the outside of the neck have cooperating upper and lower locking beads holding the cap in place until the lower portion of the skirt is torn off by tearing along a horizontal score line and thereby removing the lower cap locking bead. The skirt is torn by pulling a tab horizontally. The tab in one form of the invention is defined by cutouts in the lower portion of the outer skirt and is offset outwardly for easy engagement by the finger of the user. In a modification there are two tabs extending in opposite directions, either …
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 January 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 5, 2010.
- 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.