Patents by Inventor Roy N. Alchin

Roy N. Alchin 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).

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    Patent number: D298706
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: November 29, 1988
    Inventors: Roy N. Alchin, Raymond J. Long
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    Patent number: D352622
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: November 22, 1994
    Assignee: Alchin & Long Group Pty Limited T/AS Colonial Castings
    Inventor: Roy N. Alchin
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    Patent number: D352840
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: November 29, 1994
    Assignee: Alchin & Long Group Pty. Limited T/AS Colonial Castings
    Inventor: Roy N. Alchin