WENTWORTH MOLD INC. ELECTRA FORM INDUSTRIES DIVISION PRECISION MOLD DIVISION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 3122
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5855932 Molded article retrieval apparatusSep 13, 96Jan 05, 99[B29C]
5707662 Parison molding and cooling apparatusNov 01, 95Jan 13, 98[B29C]
5531588 Adjustable cam track for an injection molding machineMay 05, 95Jul 02, 96[B29C]
5273152 Apparatus for positioning articlesApr 17, 92Dec 28, 93[B65G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5837299 Variable dimension cooling chamberExpiredApr 09, 96Nov 17, 98[B29C]
5762982 Heat setting and gauging apparatusExpiredApr 25, 95Jun 09, 98[B29C]
5750161 Quick change mold toolingExpiredMay 05, 95May 12, 98[B29C]
5738149 Conduit for flexible hot manifold assembly for injection molding machinesExpiredApr 25, 96Apr 14, 98[F16L]
5702734 Take-out and cooling apparatusExpiredDec 19, 94Dec 30, 97[B29C]
5653934 Molded part take-out apparatusExpiredMay 05, 95Aug 05, 97[B29C]
5647930 Method for forming a layered preform and containerExpiredJun 06, 95Jul 15, 97[B29C]
5631030 Cooled injection core for an integrated injection blow mold machineExpiredMay 05, 95May 20, 97[B29C]
5569473 Apparatus for forming a recyclable lined containerExpiredMay 23, 95Oct 29, 96[B29C]
5536164 Flexible hot manifold assembly for injection molding machinesExpiredMay 05, 95Jul 16, 96[B29C]
5508076 Layered preformExpiredFeb 10, 94Apr 16, 96[B65D]
5051227 Production of preforms and blow molded articlesExpiredAug 20, 90Sep 24, 91[B29C]
4950152 Apparatus for producing preforms and blow molded articlesExpiredDec 05, 88Aug 21, 90[B29C]
4919588 Sweep stackerExpiredFeb 13, 89Apr 24, 90[B65G]
4634366 Injection molding machineExpiredNov 07, 84Jan 06, 87[B29C]
4622001 Cavity cooling systemExpiredMar 12, 85Nov 11, 86[B29C]
4497624 Injection molding machineExpiredNov 08, 82Feb 05, 85[B29C]

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