Hearing protective earplug

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Description

FIG. 1 is a perspective view of a hearing protective earplug showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image; and,

FIG. 6 is a front elevational view thereof.

Referenced Cited
U.S. Patent Documents
D245202 July 26, 1977 Asker
D298356 November 1, 1988 Falco
D303014 August 22, 1989 Gardner et al.
3259128 July 1966 Leight
4122841 October 31, 1978 Rock et al.
5188123 February 23, 1993 Gardner, Jr.
Foreign Patent Documents
3304362 August 1984 DEX
Other references
  • Bilsom PERFIT Earplug, Lab Safety Supply Catalog (1993).
Patent History
Patent number: D375550
Type: Grant
Filed: Apr 15, 1994
Date of Patent: Nov 12, 1996
Assignee: Cabot Safety Intermediate Corporation (Boston, MA)
Inventors: J. Scott Esler (Sturbridge, MA), Joseph A. Marino (Cumberland, RI), R. William Vernazza (Charlton, MA)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: I. Simmons
Law Firm: Fishman, Dionne & Cantor
Application Number: 0/21,406
Classifications
Current U.S. Class: Ear Plug Or Nose Clip (D24/106)