Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD336553 S
Publication typeGrant
Application numberUS 07/400,050
Publication dateJun 15, 1993
Filing dateAug 29, 1989
Priority dateJun 29, 1989
Publication number07400050, 400050, US D336553 S, US D336553S, US-S-D336553, USD336553 S, USD336553S
InventorsWilli Blome
Original AssigneeFirma Karl Scheffer-Klute GmbH & Co.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Protective helmet
US D336553 S
Abstract  available in
Previous page
Next page
  1. The ornamental design for a protective helmet, as shown and described.

FIG. 1 is a top, front and side perspective view of a protective helmet showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a rear elevational view thereof.

U.S. ClassificationD29/106, D29/102