Tear-open can member
CA 1267614 C · Owner: Kramer, Felix · Inventors: Kramer, Felix
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A can member is provided with a pair of scorings which define a tear-off strip laterally. A tongue produced as a separate sheet-metal member is welded onto the tear-off strip in a welding region at one of its ends. Between the welding region and the free end of the tongue a starting scoring extends over the tear-off strip. The starting scoring extends substantially transversely to the lateral scorings only in a central region of the tearoff strip and extends away from the free end of the tongue in the vicinity of the two lateral scorings. The welding region covers the starting scoring in the vicinity of each of the two lateral scorings. As a result care is taken, to ensure that a tearing …
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 April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- 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.