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Expired Canadian patentCanada

Propellant charge for tubular weapons and a process for the production thereof

CA 1265344 C · Owner: Oversohl, Wilhelm · Inventors: Oversohl, Wilhelm

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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No 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

A propellant charge for tubular weapons with almost constant burning behavior in a rated reference temperature range is produced from a mixture of at least one mono- or polybasic homogeneous propellant charge powder of which the, particles are of homogeneous material with at least one, heterogeneous propellant charge powder of which the particles consist of a mono- or polybasic base powder with mono- or polybasic powder granulates embedded therein and which by, virtue of its heterogeneous composition has a pressure, characteristic with a negative firing temperature coefficient. The powders have similar heat of explosion force and particle size, and are mixed in proportions such as to …

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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

  • Granted February 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 19, 1984
GrantedFebruary 6, 1990
Term endedFebruary 6, 2007
Patent numberCA 1265344 C
Classification (IPC)C06B25/00 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedDec 19, 1984Patent grantedFeb 6, 1990Term endedFeb 6, 2007

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.