Patents by Inventor John L. Hastie

John L. Hastie 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).

  • Magnetic razor blade conditioning device
    Patent number: 4615436
    Abstract: A magnetic conditioning device whereby a magnetic influence acts upon a cutting edge, such as a razor blade, at an angle of substantially 45.degree. incident thereto so as to maintain the sharpness of the cutting edge.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: October 7, 1986
    Inventor: John L. Hastie