Patent
   D508509
Priority
Aug 11 2004
Filed
Aug 11 2004
Issued
Aug 16 2005
Expiry
Aug 16 2019
Assg.orig
Entity
unknown
0
12
n/a
The ornamental design for a periscope, as shown and described.

FIG. 1 is a front elevational view of a periscope showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

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

FIG. 6 is a bottom plan view thereo.

Yeung, Wa-Sang

Patent Priority Assignee Title
Patent Priority Assignee Title
1480112,
1837208,
2325253,
3801187,
4195922, Mar 22 1979 Snorkel camera system
4580886, Jun 29 1984 Rotatable snorkel system
4868588, Feb 10 1989 Rotatable snorkel camera system
4887893, Mar 13 1987 Aquaplay AB Periscope with one piece housing and mirror holding elements
5469236, Jan 19 1995 Roessel/Cpt, Inc. Snorkel lens system
5943163, Aug 25 1997 SEILER INSTRUMENT AND MANUFACTURING COMPANY, INCORPORATED Optical and infrared periscope
D347440, Aug 10 1992 MEYER MACHINE & EQUIPMENT, INC Combined periscope and flashlight
D460771, Dec 20 2001 Periscopes
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 28 2004YEUNG, WA-SANGEASTCOLIGHT HONG KONG LIMITEDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0156860643 pdf
Aug 11 2004Eastcolight (Hong Kong) Limited(assignment on the face of the patent)
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