Sealing closure for lined drums
CA 1300531 C · Owner: International Precision Components Corporation · Inventors: Stolzman, Michael D.; Stolzman, Michael D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
SEALING CLOSURE FOR LINED DRUMS", Abstract of the Disclosure A sealing closure for lined liquid-permeable drums permitting the drums to be used for storing and shipping liquids. The drum may be formed of conventional fiberboard having a liquid-impermeable liner on the inner surface thereof. The closure is formed of a liquid-impermeable synthetic resin having a peripheral portion sealingly clamped to the liner by a clamp ring. The clamp ring is formed from a cylindrical metal ring to a turned configuration providing improved sealing clamping between the peripheral portion of the closure and the liner on the drum.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.