Patents Assigned to Erva Tool & Mfg. Co., Inc.
  • Conical squirrel baffle
    Patent number: D475817
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: June 10, 2003
    Assignee: Erva Tool & Mfg. Co., Inc.
    Inventor: Erwin J. Heyek
  • Scalloped squirrel baffle
    Patent number: D480515
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: October 7, 2003
    Assignee: ERVA Tool & Mfg. Co., Inc.
    Inventor: Erwin J. Heyek
  • Scalloped squirrel baffle
    Patent number: D492451
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: June 29, 2004
    Assignee: Erva Tool & Mfg. Co., Inc.
    Inventor: Erwin J. Heyek