Pull rings for the operating levers of quick connect/disconnect couplings
CA 2117115 C · Owner: Delaware Capital Formation, Inc. · Inventors: Allen, Daniel M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A quick connect/disconnect coupling comprises locking levers. Pull rings facilitate pivoting of the locking levers to a release position. The pull rings are resiliently mounted on the levers in positions that prevent the pulls rings from interfering with movement of the locking levers to their locking positions.
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 March 7, 1994 and granted June 16, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2016.
- 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.