Patents by Inventor Stephen Jasperson

Stephen Jasperson 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: 4809433
    Abstract: An improved single-pass hook and blade type agricultural shear with a central pivotal axis. The shear includes an elongate hook with an outer end and an inner end pivotally supported about said axis. Said hook has a substantially radially extending circumferentially disposed concave branch supporting shearing edge. The shear next includes an elongate blade with an outer end and an inner end supported about said axis. Said blade has a substantially radially extending circumferentially disposed convex primary cutting edge opposing said shearing edge. The cutting edge has an outer portion and has an inner portion circumferentially offset from said outer portion and has a substantially circumferentially extending radially inwardly disposed intermediate cutting edge extending between the outer and inner portions of said primary cutting edge. The outer portion of the primary cutting edge and the intermediate cutting edge define a sharp pointed lancet blade between the ends of the primary cutting edge.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: March 7, 1989
    Assignee: Corona Clipper Company
    Inventors: Georges A. Maxwell, Stephen Jasperson
  • Patent number: D305494
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: January 16, 1990
    Assignee: Corona Clipper Company
    Inventor: Stephen Jasperson
  • Patent number: D305496
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: January 16, 1990
    Assignee: Corona Clipper Company
    Inventor: Stephen Jasperson
  • Patent number: D305497
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: January 16, 1990
    Assignee: Corona Clipper Company
    Inventor: Stephen Jasperson
  • Patent number: D307097
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: April 10, 1990
    Assignee: Corona Clipper Company
    Inventor: Stephen Jasperson