HOOKER CHEMICALS & PLASTICS CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4499635 Shadecloth fixing pinExpiredMar 09, 83Feb 19, 85[A44B]
4477570 Microbial degradation of obnoxious organic wastes into innocucous materialsExpiredSep 24, 81Oct 16, 84[C12N]
4425198 Brightening composition for zinc alloy electroplating bath and its method of useExpiredJun 16, 81Jan 10, 84[C25D]
4389260 Composition and process for the phosphatizing of metalsExpiredJan 08, 82Jun 21, 83[C23F]
4380531 Process for preparing phosphorus acid from industrial waste materialsExpiredOct 21, 81Apr 19, 83[C01B]
4376691 Electrolytic cell especially for chloralkali electrolysis with air electrodeExpiredNov 02, 79Mar 15, 83[C25B]
4367315 Flame retardant polymer systems and polymer compositionsExpiredJan 29, 81Jan 04, 83[C08G]
4343951 Method for the preparation of fluoroanilineExpiredDec 29, 80Aug 10, 82[C07C]
4330515 Preparation of phosphorous acid from industrial waste material containing phosphitesExpiredDec 18, 80May 18, 82[C01B]
4327012 Polymer blends with improved hydrolytic stabilityExpiredMar 20, 81Apr 27, 82[C08L]
4263119 Anode elements for monopolar filter press electrolysis cellsExpiredMay 17, 79Apr 21, 81[C25B]
4263248 Phenolic resins with improved low temperature processing stabilityExpiredDec 28, 79Apr 21, 81[B29G]
4256625 Polyester compositions of enhanced tensile strength on ageingExpiredFeb 05, 80Mar 17, 81[C08G]
4250002 Polymeric microporous separators for use in electrolytic processes and devicesExpiredSep 19, 79Feb 10, 81[C25B]
4207165 Filter press cellExpiredMay 17, 79Jun 10, 80[C25B]
4206193 Versatile process for generating chlorine dioxideExpiredDec 18, 78Jun 03, 80[C01B]
4203879 Plastisol resins having improved clarityExpiredSep 01, 78May 20, 80[C08L]
4192828 Polymer compositions having enhanced low temprature impact resistance on ageingExpiredMar 31, 78Mar 11, 80[C08L]

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