Glue stick
CA 2126764 A1 · Owner: Halm, Hans · Inventors: Halm, Hans; Werhahn, Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The invention relates to a glue stick having a piston supporting the glue substance and a shell surrounding the glue substance, in which the drive means for up and down movement of the stick substance, which also serves as actuating element, is, together with the shell and the piston formed as, a unitary injection moulding. This drive and actuating element (2) is constituted arcuately. Also two such mutually, opposed drive and actuating elements (2A,2B) can be provided respectively arranged with one end on the rim of the shell(1). (Fig.1)
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
- Filed June 27, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2016.
- 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.