Drum lifter ring
CA 1316126 C · Owner: International Precision Components Corporation · Inventors: Stolzman, Michael D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DRUM LIFTER RING", Abstract of the Disclosure A drum lifter ring formed as a one-piece molded synthetic resin ring having a plurality of rows of radially outwardly opening recesses in a midportion thereof a rigid, top wall projecting radially outwardly to beyond the outer surface of the midportion, and a rigid bottom wall projecting radially inwardly beyond the inner surface of the midportion. The bottom wall is provided with a plurality of downwardly opening recesses. The top wall defines a downwardly opening annular recess adjacent the outer surface of the ring midportion. In the illustrated embodiment the, radially outwardly opening recesses in the midportion are provided in a plurality …
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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 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.