Retaining device
CA 2107005 C · Owner: Swick, Carl D. · Inventors: Neuenfeldt, Frederick E.; Immel, Darryl R.; Swick, Carl D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digging bucket has a lip, a lip aperture with a forward surface, a digging component mounted on the lip and a component retaining device. The device comprises a keeper wedge with protrusions bearing against the component and a wedge member interposed between the forward surface and the component. In the improvement the keeper wedge has at least one angled face and the wedge member has a pair of angled faces at least one of, which bears against the angled face of the keeper wedge. The wedge member is retained in position by a tension bolt extending through the aperture. Several embodiments are disclosed with wedge members having one or two wedges to urge the keeper wedge (and thus the …
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 September 27, 1993 and granted July 15, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2015.
- 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.