Patent
   D305902
Priority
Apr 28 1988
Filed
Apr 28 1988
Issued
Feb 06 1990
Expiry
Feb 06 2004
Assg.orig
Entity
unknown
3
5
n/a
The ornamental design for opera glasses, as shown and described.

FIG. 1 is a perspective view of opera glasses showing our new design;

FIG. 2 is a perspective view thereof from the side opposite that shown in FIG. 1;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is an end elevational view thereof from the left of FIG. 4, the opposite end elevational view being the mirror image thereof; and

FIG. 6 is a top plan view thereof, the bottom plan view thereof being identical.

Wakayama, Shoji, Akiyama, Akio

Patent Priority Assignee Title
6028710, May 11 1998 Method and apparatus for head-mounted optical magnification
D330037, Dec 04 1989 Young Optical Co., Ltd. Folding binoculars
D373592, May 01 1995 Pair of binoculars
Patent Priority Assignee Title
106310,
JP3518380,
JP606119,
JP689579,
JP690156,
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 15 1988WAKAYAMA, SHOJIYOUNG OPTICAL CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST 0048790495 pdf
Apr 15 1988AKIYAMA, AKIOYOUNG OPTICAL CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST 0048790495 pdf
Apr 28 1988Young Optical Co., Ltd.(assignment on the face of the patent)
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule