Ransburg-Gema AG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5131350 Electrostatic powder coating deviceExpiredAug 10, 90Jul 21, 92[B05C]
D325241 Spray gun for coating articlesExpiredDec 14, 88Apr 07, 92[]
D318712 Spray gun for coating articlesExpiredDec 14, 88Jul 30, 91[]
5022590 Spray gun for electrostatic spray coatingExpiredFeb 05, 90Jun 11, 91[B05B]
5000624 Powder preparation system for coating powderExpiredSep 01, 88Mar 19, 91[B65G]
4993645 Spray coating device for electrostatic spray coatingExpiredJan 25, 90Feb 19, 91[B05B]
4941778 Method and apparatus for measuring and regulating the flow rate of powder in a powder spraying deviceExpiredJul 01, 88Jul 17, 90[B65G]
4923123 Spray coating device for atomization of fluid coating materialExpiredNov 08, 88May 08, 90[B05B]
4916571 Spray-coating deviceExpiredJul 20, 88Apr 10, 90[H01T]
4886011 Powder coating apparatusExpiredJul 14, 88Dec 12, 89[B05C]
4851261 Powder coating boothExpiredApr 07, 88Jul 25, 89[B05D, B05B]
4844348 Spray unit for spray coating articlesExpiredMay 19, 88Jul 04, 89[H02M, B05B]
4802625 Electrostatic spray coating device for coating with powderExpiredMar 06, 87Feb 07, 89[B05B]
4788933 Electrostatic spraying device for spraying articles with powdered materialExpiredMar 09, 87Dec 06, 88[B05B]
4764220 Method and apparatus for cleaning a powder coating boothExpiredMar 29, 85Aug 16, 88[B08B]
4747546 Spray apparatus for electrostatic powder coatingExpiredAug 15, 86May 31, 88[B05B]
4706890 Method and apparatus for electrostatic coating of articles with powdered coating materialExpiredApr 15, 86Nov 17, 87[B05B, H05F]
4702420 Spray gun for coating materialExpiredJan 24, 86Oct 27, 87[B05B]
4659011 Method and apparatus for the spraying of powderExpiredApr 03, 81Apr 21, 87[B05B]
4659019 Spray device for coating articles with powderExpiredMay 29, 85Apr 21, 87[B05B]

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