Patents by Inventor by Sophie Michielsen, legal representative

by Sophie Michielsen, legal representative has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4502876
    Abstract: A cartridge for use in rebreathing apparatus comprising a filtering device for removing carbon dioxide, a pair of flexible containers (one disposed within the other and in fluid communication with each other through a restricted opening), a coaxial connector for fluidly connecting the cartridge to a rebreathing apparatus, means for maintaining a separation between the pair of flexible connectors and a metallic shield disposed in the flow path of exhaled gases for removing moisture.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: March 5, 1985
    Inventors: Albert R. Behnke, Jr., John P. Jones, Jr., Charles E. Michielsen, deceased, by Sophie Michielsen, legal representative