Teat cup with air inlet
CA 1136573 A · Owner: Babson Bros. Co. · Inventors: Thompson, Duncan M.; Coombs, Lawrence J.; Swanson, Harold V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A teat cup has an inflation with an intermediate portion sealed against the shell defining a, space adjacent the bottom of the shell separate from, the pulsation space. Holes through the shell and the inflation wall below the intermediate seal admit air to the inflation aiding the flow of milk. An air filter keeps dirt from the milk.
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 November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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.