Peristaltic machine for depositing viscous materials
CA 2437080 A1 · Owner: Anderson, Joseph R. · Inventors: Anderson, Joseph R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A peristaltic depositing machine (150) includes a hopper (112) to store viscous material. A flexibly deformable tubing section (116) is connected to the hopper (112) for receiving the viscous material. A pair of rollers (124 126) cooperate to compress tubing section (116) and thereafter move forwardly along the tubing section (116) such that the viscous material is forwardly propagated. A manifold (114) is connected between the hopper (112) and the tubing section (116) to transmit the viscous material there between. A flow control unit (120) is connected to a portion of the tubing section forward or the pair of rollers. The flow control unit (120) alternately constricts and …
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 January 30, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2024.
- 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.