TRETORN AKTIEBOLAG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4920663 Athletic shoe, particularly a tennis shoe, and process for producing such a shoeExpiredJun 20, 89May 01, 90[A43B]
4858343 Sole for athletic shoes, particularly for soccer shoesExpiredFeb 22, 88Aug 22, 89[A43B, A34C]
4833796 Gripping element for sports shoes and soles utilizing sameExpiredFeb 22, 88May 30, 89[A43C]
4821430 Heel counter for athletic shoe and footwear incorporating sameExpiredAug 28, 87Apr 18, 89[A43B]
4766679 Midsole for athletic shoesExpiredAug 28, 87Aug 30, 88[A43B]
4691926 Racket, especially a tennis racket, having a grip sleeve with spring elementsExpiredAug 24, 84Sep 08, 87[A63B]
4648187 Athletic shoe sole with cleats having threaded exchangeable gripping elementsExpiredJul 18, 85Mar 10, 87[A43C]
4644672 Outer sole for an athletic shoe having cleats with exchangeable gripping elementsExpiredJul 18, 85Feb 24, 87[A43B]
4633600 Outer sole for an athletic shoe having cleats with exchangeable snap-on gripping elementsExpiredFeb 19, 86Jan 06, 87[A43C]
4616431 Sport shoe sole, especially for runningExpiredOct 24, 84Oct 14, 86[A43B]
4561197 Golf shoe sole structures for relieving spike-produced pressure pointsExpiredMay 03, 85Dec 31, 85[A43B]
4557059 Athletic running shoeExpiredFeb 08, 83Dec 10, 85[A43B]
4546559 Athletic shoe for track and field useExpiredAug 16, 83Oct 15, 85[A43B]
4545584 Racket with adjustable handleExpiredJul 03, 84Oct 08, 85[A63B]
4537400 Racket grip having a grip stripExpiredJul 03, 84Aug 27, 85[A63B]
4523396 Athletic shoe having spike or stud-shaped cleats exchangeably arranged at the running soleExpiredAug 16, 83Jun 18, 85[A43B, A43C]
4404759 Athletic shoe, especially jogging shoeExpiredAug 27, 81Sep 20, 83[A43B]
4402145 Tread sole for athletic shoe consisting of rubber or another material having rubber-elastic propertiesExpiredAug 27, 81Sep 06, 83[A43B]
4399621 Athletic shoe, especially tennis shoeExpiredSep 29, 81Aug 23, 83[A43B]
4366631 Athletic shoeExpiredJan 15, 81Jan 04, 83[A43B]

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