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Patent Protection Ended

No. Patent No. Title
5121. PI 89000875 DETERGENT GRANULES FROM COLD DOUGH USING FINE DISPERSION GRANULATION.
5122. PI 89000876 PROCESS FOR MAKING CONCENTRATED SURFACTANT GRANULES.
5123. PI 89000877 RETROREFLECTIVE PAVEMENT MARKER.
5124. PI 89000878 METHOD AND APPARATUS FOR ADDRESS CONVERSION IN A CHINESE CHARACTER GENERATOR OF A CRTC SCAN CIRCUIT.
5125. PI 89000885 SYSTEM FOR REDUCING DRILL STRING MULTIPLES IN FIELD SIGNALS.
5126. PI 89000886 TRANSVINYLATION REACTION.
5127. PI 89000887 THIOCHROMAN ESTERS OF PHENOLS AND TEREPHTHALIATES HAVING RETINOID-LIKE ACTIVITY.
5128. PI 89000892 SEMICONDUCTIVE CERAMIC COMPOSITION.
5129. PI 89000893 NEW ALLYLAMINOETHYLAZOLES.
5130. PI 89000898 METHOD AND APPARATUS FOR TESTING FOR REFRIGERANT LEAKS.
5131. PI 89000899 DETERGENT BAR.
5132. PI 89000900 DETERGENT COMPOSITION.
5133. PI 89000901 TAPE RECORDING AND/OR REPRODUCING APPARATUS.
5134. PI 89000902 METHOD AND APPARATUS FOR MANUFACTURING SILICON SINGLE CRYSTALS.
5135. PI 89000904 N-PHENYLPYRAZOL-4-YL ETHER DERIVATIVES
5136. PI 89000905 METHOD OF RECOVERING L-QUEBRACHITOL FROM RUBBER LATEX SERUMS
5137. PI 89000906 REMOTE CONTROL WATER MONITOR.
5138. PI 89000908 PIPERIDINE DERIVATIVES.
5139. PI 89000909 CORDLESS TELEPHONE.
5140. PI 89000914 GAS BOTTLE VALVE.