Seal for a fuel filler nozzle
CA 2217964 C · Owner: Carl Freudenberg · Inventors: Tinz, Reinhard; Heinemann, Joachim; Hor, Hartmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A seal for a fuel filler nozzle is disclosed which is installed in the filler neck of a fuel tank of a motorized vehicle and includes a seal ring of elastomeric material and a sealing lip which sealingly fittingly and elastically engages a fuel filler nozzle inserted into the filler neck. The seal ring is connected to a conically tapered seal carrier which functions as a conical nozzle guide during insertion of the nozzle into the filler neck. The seal carrier is made of a single piece and is fittingly and rigidly connected to the seal ring. The filler nozzle seal is economically manufactured due to the small number of parts involved and functions reliably over a long period of use.
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 31, 1997 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 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.