Patents Examined by Nelson C. Roltje
  • Quahog sizing ring
    Patent number: D245481
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: August 23, 1977
    Inventors: Anthony Ronci, Robert A. Petrucci
  • Base for a pH meter electrode arm
    Patent number: D252861
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: September 11, 1979
    Assignee: Corning Glass Works
    Inventor: Robert S. Potts
  • Writing instrument cap
    Patent number: D335143
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: April 27, 1993
    Assignee: Tombow Pencil Co., Ltd.
    Inventors: Kazunori Katami, Kazuhiko Suzuki