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  Patent Plaque Award for US Patent 4300933, Thomas; Donald D. and PPG Industries, Inc. (Pittsburgh, PA)

Hand-cut black glass plaque with sand-etched patent inscription

SKU: 054302167

 

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US patent number: 4300933
Title: Method of manufacturing automotive windows by coating a scored substrate
Inventor(s):
Thomas; Donald D. (Crestline, OH)
Owner:
PPG Industries, Inc. (Pittsburgh, PA)
Filing date: May 27, 1980
Issue date: November 17, 1981
Abstract: An automotive back window for flush glazing is manufactured by subsurface scoring a glass sheet to define an automotive back window blank in the sheet surrounded by sheet supporting glass portions. An endless band of ceramic paste is silk screened over the score as screen portions beyond the screen pattern are supported by the supporting glass portions. The sheet is thereafter baked to remove volatiles in the paste, the supporting glass portions removed from the blank and the blank having the baked pattern is bent and/or tempered.

This commemorative patent plaque is the perfect way to honor an inventor or the patent owner.  The superior quality glass plaque is hand-cut and polished to perfection.  An exact image of the first page of the patent document is then sand-etched into the glass using the most modern, precise sand-blasting techniques.  Finally, the etched glass is placed in front of a piece of high-quality hardwood with your choice of finish: rosewood OR piano black (make selection above).  The result is a unique keepsake that forever memorializes the great accomplishment of the inventors and owner of the invention.

The plaque comes in your choice of three sizes (make selection above):

  • Small: 9" tall by 7" wide
  • Medium: 10" tall by 8" wide
  • Large: 12" tall by 9" wide

Please allow up to 2 weeks for customization, manufacturing, and delivery.

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