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Patent Protection Ended

No. Patent No. Title
13101. PI 94002081 CLOSED CAPTION SYSTEM FOR USE WITH COMPRESSED DIGITAL VIDEO TRANSMISSION.
13102. PI 94002083 AN APPARATUS FOR THE SEPARATION OF SOLIDS FROM FLOWING LIQUID.
13103. PI 94002084 GLUE STICK.
13104. PI 94002085 RECOVERY OF COPPER FROM ETCHING EFFLUENT.
13105. PI 94002091 METHOD OF IMPROVING THE WEAR AND CORRISION RESISTANCE OF FERROUS METAL PARTS.
13106. PI 94002092 FREQUENCY DEMODULATION CIRCUIT.
13107. PI 94002094 PROCEDURE FOR ENCAPSULATING IBUPROFEN
13108. PI 94002095 IMAGE DISPLAYING APPARATUS.
13109. PI 94002100 SUBSTITUTED AZADIOXACYCLOALKENES.
13110. PI 94002101 ELECTRODE AND PREPARATION THEREOF.
13111. PI 94002107 AUTOMATIC TOOL CHANGER.
13112. PI 94002108 DISC DATA REPRODUCING APPARATUS AND SIGNAL PROCESSING CIRCUIT.
13113. PI 94002112 IMPROVEMENTS IN CATALYSTS.
13114. PI 94002115 SUBSTITUTED OXAZINE AND THIAZINE OXAZOLIDINONE ANTIMICROBIALS.
13115. PI 94002116 DATA BUS.
13116. PI 94002121 METHOD AND APPARATUS FOR CONTINUOUS DRYING IN SUPERHEATED STEAM.
13117. PI 94002122 COMMUNICATION BUS SYSTEM AND STATION FOR USE IN SUCH SYSTEM.
13118. PI 94002123 DC UPPER FURNACE.
13119. PI 94002126 ABSORBENT ARTICLE HAVING COMPOSITE ELASTICIZED MEMBER.
13120. PI 94002130 TAPE LOADING MECHANISM.