Shot for wild game hunting and a method for its manufacture
CA 2123219 C · Owner: Boliden Mineral Ab · Inventors: Johansson, Karl-Erik; Johansson, Kjell-Ake; Lindgren, Per-Olof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordNo Claude kit for weapons
Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.
Abstract From the Canadian patent
The invention relates to shot pellets for hunting wild game particularly birds on wet marshlands. The pellets are also suitable for clay pigeon shooting on organized skeet ranges. The shot pellets have an inner core comprised of lead or lead alloy and, an outer layer of silver or silver alloy. The shot pellets are not influenced or only slightly influenced by a strong hydrochloric acid environment, therewith greatly eliminating the risk of lead leaching from the pellets. The shot pellets are produced by coating shot pellet cores of lead or lead alloy electrochemically with at least one layer wherein the outermost layer is always comprised of silver or a silver alloy.
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 6, 1993 and granted March 31, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 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.