J. F. Adolff AG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5019194 Method for manufacturing a web of plastic turf for sports groundsExpiredMay 15, 89May 28, 91[B32B]
4755401 Artificial turf with playing field markingsExpiredFeb 02, 87Jul 05, 88[A41G]
4735825 Method of applying and bonding free-flowing bulb material to artificial grassExpiredJul 15, 87Apr 05, 88[B05D]
4535021 Backing mat for a ground covering, preferably for a water-permeable artificial grass, as well as a method for its productionExpiredMar 07, 84Aug 13, 85[A01N, A41G]
4477299 Method of bonding a floor-covering web with a backing webExpiredMar 08, 82Oct 16, 84[C09J, B32B]
4444815 Water permeable ground covering for open spacesExpiredJun 07, 83Apr 24, 84[B32B]

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