Patents by Inventor Michael Leon Kagan

Michael Leon Kagan 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).

  • Time indicator and method of manufacturing same
    Patent number: 7232253
    Abstract: A time indicator comprising a first reservoir (13), a migration medium (11) and activating means for bringing liquid from the first reservoir (13) in contact with the migration medium (11) so that after activation the liquid migrates through the migration medium (11) producing a colour change therein. The activating means comprises a second reservoir (16) connected between the first reservoir (13) and the migration medium (11) whereby after activation the liquid travels relatively rapidly from the first reservoir (13) to the second reservoir (16) and then migrates relatively slowly along the length of the migration medium (11) over time.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: June 19, 2007
    Assignee: Timestrip (UK) Limited
    Inventors: Reuben Isbitsky, Paul Joseph Freedman, Ian Michael Solomon, Michael Leon Kagan
  • Time indicator and method of manufacturing same
    Publication number: 20040240324
    Abstract: A time indicator comprising a first reservoir (13), a migration medium (11) and activating means for bringing liquid from the first reservoir (13) in contact with the migration medium (11) so that after activation the liquid migrates through the migration medium (11) producing a colour change therein. The activating means comprises a second reservoir (16) connected between the first reservoir (13) and the migration medium (11) whereby after activation the liquid travels relatively rapidly from the first reservoir (13) to the second reservoir (16) and then migrates relatively slowly along the length of the migration medium (11) over time.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 2, 2004
    Inventors: Reuben Isbitsky, Paul Joseph Freedman, Ian Michael Solomon, Michael Leon Kagan