Clip type fastener
CA 2179795 C · Owner: Astenjohnson, Inc. · Inventors: Mcpherson, Douglas Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Clip type fasteners for attaching paper machine fabric contacting elements to their supporting structures. The fasteners are provided typically with two tight tolerance slots, which are press-fits onto the elements and the support structure. The fasteners allow for simple removal replacement, and respacing of the elements.
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 June 24, 1996 and granted March 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 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.