Catheter with valve assembly
CA 1136511 A · Owner: Kendall Company (The) · Inventors: Patel, Bhupendra C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catheter comprising, a conduit having a lumen and a, valve assembly for the lumen. The valve assembly has a housing having a cavity communicating with the lumen a port, and a seat, extending peripherally around the port. The valve assembly also has a valve element of elastic material received in the cavity and having a first portion defining a surface for sealingly engaging against the seat. The valve element has a second portion connected to the housing at a location such that it stretches responsive to contact against the first portion through the port. The second portion biases the sealing surface of the first portion against the seat to close the valve, and the second portion permits …
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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.