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The ornamental design of a hearing protective earplug, as shown and described. |
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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 front elevational view thereof, the back elevational view being a mirror image; and,
FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image.
Marino, Joseph A., Esler, J. Scott, Vernazza, R. William
| Patent | Priority | Assignee | Title |
| 3259128, | |||
| 4122841, | Jan 09 1976 | American Electromedics Corporation | Probe tip |
| 5188123, | Aug 20 1990 | Cabot Safety Intermediate Corporation | Hearing protective earplug having alternative modes of insertion |
| D245202, | Sep 03 1975 | Ear protection plug set | |
| D298356, | Aug 22 1985 | Cabot Safety Intermediate Corporation | Earplug or similar article |
| D303014, | May 04 1987 | Cabot Safety Intermediate Corporation | Earplug or similar article |
| DE3304362, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 15 1994 | Cabot Safety Intermediate Corporation | (assignment on the face of the patent) | / | |||
| May 27 1994 | ESLER, J SCOTT | Cabot Safety Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0617 | |
| May 27 1994 | MARINO, JOSEPH A | Cabot Safety Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0617 | |
| May 27 1994 | VERNAZZA, R WILLIAM | Cabot Safety Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0617 | |
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