Method for manufacturing target objects for sport practice shooting and sport shooting competitions and target objects manufactured according to this method
CA 2285785 C · Owner: Gaese, Dagmar · Inventors: Gaese, Dagmar; Schilling, Ehrhard; Wody, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
The present invention relates to a method for manufacturing target objects for sport practice shooting and sport shooting competitions wherein, clay and/or rock flour as a base material is mixed with a bonding agent and other additives for manufacturing a preliminary product which is subsequently shaped into the target object whereby the mix comprises , 30 - 70 weight percent base material 10 - 40 weight percent gypsum, 10 - 20 weight percent grain flour, sufficient water and further liquid and/or semi-liquid additives resulting in a pasty mix which is formed by extruding and, subsequent drying to a preliminary product or to the finished target object.
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 October 8, 1999 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2021.
- 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.