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Patent
   D304438
Priority
May 21 1987
Filed
May 21 1987
Issued
Nov 07 1989
Expiry
Nov 07 2003
Inventors
Waldrup, H…
Assg.orig
HELI PLEX,…
Assg.curr
AERONAUTIC…
Entity
unknown
Referenced by
2
References
2
Maint.:
n/a
The ornamental design for a helicopter windshield unit, as shown and described.

FIG. 1 is a front, right side perspective view of a helicopter windshield showing my new design;

FIG. 2 is a front, left side perspective view thereof.

The helicopter shown in broken lines is for illustrative purposes only and forms no part of the claimed design.
INVENTORS:

Waldrup, Herman H.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
9550580, Feb 24 2014 Bell Helicopter Textron Inc.; BELL HELICOPTER TEXTRON INC Strapped windshield assembly for rotorcraft
9994300, Feb 24 2014 Textron Innovations Inc Strapped windshield assembly for rotorcraft
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3133715,
170247,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 15 1987WALDRUP, HERMAN H HELI PLEX, INC , 432B WEST FORK DR , ARLINGTON, TX 76012 A CORP OF TXASSIGNMENT OF ASSIGNORS INTEREST 0047170771 pdf
May 21 1987Heli Plex, Inc.(assignment on the face of the patent)
Mar 26 1991HELI PLEX, INC , A CORP OF TXAERONAUTICAL ACCESSORIES, INC , BRISTOL, TN A CORP OF TNASSIGNMENT OF ASSIGNORS INTEREST 0056700748 pdf
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