Tamper-resistant container utilizing a flexible seal
CA 1309037 C · Owner: S.C. Johnson & Son, Inc. · Inventors: Martens, Edward J.; Martin, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An open-ended tamper-resistant container having a flexible seal over the open end is disclosed. The tamperresistant container is particularly suited for holding a volatile material for slow diffusion. The container has at least one free-standing rib which prevents downward pressure or squeezing on the flexible seal of the container which could otherwise rupture the seal and/or result in leakage of the material held in the container. The tamper-resistant container is suitable for independent use or use in conjunction with an electrically heated vapor dispensing apparatus. (3346n)
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 October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 2009.
- 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.