Auxiliary gas connection for meter sets
CA 2193037 C · Owner: Daghe, Joseph L. · Inventors: Daghe, Joseph L.; Eckel, John D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved meter bar assembly including an elongated casting (10) having threaded inlet and outlet ports (18) and (30) along with spaced threaded swivel receiving ports (22), (36). Shoulders (54) are located in each of the swivel receiving ports (22) (36) and an auxiliary port (70) is, also located in the casting. A cylindrical tube (72) is disposed in the auxiliary port and extends into the casting (10) to provide a mechanical barrier between the outlet port (30) and the swivel port (36). A cap (76) is provided for the tube (72) and a check valve (78) disposed within the tube (72). A pair of swivel tubes, (28) and (40) are threaded into the ports (22), (36) and one of the swivel tubes …
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 December 16, 1996 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2018.
- 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.