Cartridge for holding a supply of a flowable substance
CA 2285902 A1 · Owner: Fuchs Lubritech (Australia) Pty. Ltd. · Inventors: Woodford, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cartridge (10) for holding a supply of a flowable substance includes a cylindrical tube (12) which is closed at one end (14) by a slidable seal (16). An opposite end of the tube (12) is closed by an integral end wall (22) which is provided with a sealed nipple (24) extending from the centre thereof. Nipple (24) is provided with an external thread (26). A line of weakness (28) is formed about tube (12) near end wall (22). A flange (38) extends radially from the outer circumferential surface of tube (12) adjacent the line of weakness (28). Translucent strip (40) is formed along the length of the tube (12) to allow viewing of the position of the slidable seal (16) within the tube …
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 April 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2020.
- 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.