USPTO trademark record

GD-CALC

Live registered mark · Owner Johnson, Ken · Classes 9

Mark details

Owner: Johnson, Ken
Serial number: 78721817
Registration number: 3133031
Status: REGISTERED AND RENEWED
Classes: 9 (Software / electronics / downloadable media)
Filed: 2005-09-27
Registered: 2006-08-22
Goods / services: Software for calculating diffraction efficiencies of optical media

Register data as of 2026-11-07. Records can trail live filings — check the official USPTO search for the latest status before filing.

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