Filter top change station for an animal cage
CA 2219704 A1 · Owner: Park, Chin Soo · Inventors: Park, Chin Soo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter top change station is provided having a base board. A first guide support and a second guide support are mounted on the base board in facing relationship. A separator is mounted on at least the first guide support along a slide path of a cage top for separating a filter retainer from the cage top as the cage top moves along the guide support within the slide path.
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 October 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2019.
- 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.