Patent
   D545848
Priority
Sep 11 2002
Filed
Aug 14 2006
Issued
Jul 03 2007
Expiry
Jul 03 2021
Assg.orig
Entity
unknown
0
1
n/a
The ornamental design for alignment markings for lens blanks, as shown and described.

FIG. 1 is a front view of alignment markings for lens blanks of a third embodiment of our design displayed on a display, the broken line drawing of the display, lens blank, and finished lens shape is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front view of the alignment markings for lens blanks of FIG. 1 displayed on the display in a second orientation;

FIG. 3 is a front view of the alignment markings for lens blanks of FIG. 1 displayed on the display in a third orientation;

FIG. 4 is a front view of the alignment markings for lens blanks of FIG. 1 displayed on the display in a fourth orientation; and,

FIG. 5 is a front view of the alignment markings for lens blanks of FIG. 1 displayed on the display in a fifth orientation.

Shanks, Jennifer Snyder, Andrews, Daniel E

Patent Priority Assignee Title
Patent Priority Assignee Title
4229911, Apr 03 1978 Precision blocking of semi-finished lens blanks
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 09 2002ANDREWS, DANIEL ENational Optronics, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0184860360 pdf
Dec 09 2002SHANKS, JENNIFER SNYDERNational Optronics, IncASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0184860360 pdf
Aug 14 2006National Optronics, Inc.(assignment on the face of the patent)
Oct 19 2020National Optronics, IncDAC VISION INCORPORATED D B A DAC TECHNOLOGIES ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0544340009 pdf
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