Molded article having integral displaceable member or members and method of use
CA 2188776 C · Owner: Dyno Nobel Holdings Usa, Inc. · Inventors: Sutula, Daniel P. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A molded plastic article such as a connector block (10) for connecting signal transmission lines in a blasting system includes a, body member (12) having a channel (18) formed therein for receiving and retaining a mountable member such as a detonator (20), and, a displaceable locking member (28) connected to the body member by one or more frangible webs which retain the displaceable locking member (28) in a first position aligned with but displaced from, its locking position. the mountable member e.g. a detonator (20), is, inserted into the channel (18) of the connector block (10) and a force is applied to the displaceable member to rupture the frangible web or webs and move the locking …
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.
Why it's free to use
- Filed May 19, 1995 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2017.
- 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.