World Tech Fibres, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4803762 Method for splicing lengths of fiber towExpiredFeb 26, 88Feb 14, 89[B65H, D04H]
4782565 Air processing apparatusExpiredNov 26, 86Nov 08, 88[D02J, D02G]
4685179 Air processing apparatusExpiredOct 13, 83Aug 11, 87[D02J, D02G]
4477522 Reinforcing element and method of making the sameExpiredApr 11, 83Oct 16, 84[D02G]
4397140 Method and apparatus for splicing yarns and towExpiredSep 09, 81Aug 09, 83[B65H, D02J]

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