Binocular interpupillary distance lock apparatus

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Description

FIG. 1 is a front elevation view of a binocular interpupillary distance lock apparatus in accordance with the new design;

FIG. 2 is a front, right and bottom perspective view thereof;

FIG. 3 is a left elevation view thereof;

FIG. 4 is a right elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left and rear elevation view thereof; and,

FIG. 8 is a rear elevation view thereof.

Claims

The ornamental design for a binocular interpupillary distance lock apparatus, as shown and described.

Referenced Cited
U.S. Patent Documents
2032866 March 1936 Black
2136149 November 1938 Nuchterlein
2287468 June 1942 Cisski
3431043 March 1969 Cassidy et al.
D231858 June 1974 Huckenbeck
D240458 July 1976 Takah et al.
D241165 August 1976 Huckenbeck
D241680 September 1976 Huckenbeck
D241978 October 1976 Huckenbeck
D245081 July 19, 1977 Gerdom
4909617 March 20, 1990 Boyd
D387787 December 16, 1997 Palmer
Patent History
Patent number: D593587
Type: Grant
Filed: Mar 12, 2008
Date of Patent: Jun 2, 2009
Assignee: Sheltered Wings, Inc. (Middletown, WI)
Inventor: Samuel J. Hamilton (Mount Horeb, WI)
Primary Examiner: Paula Greene
Attorney: Langlotz Patent & Trademark Works, Inc.
Application Number: 29/305,041