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Patent Protection Ended

No. Patent No. Title
13161. PI 94002198 OPTICAL DEVICE.
13162. PI 94002199 PIN TUMBLER CYCLINDER LOCK WITH SHEARABLE ASSEMBLY PINS AND METHOD AND APPARATUS OF MANUFACTURE.
13163. PI 94002202 MUTANT PHOSPHOENOLPYRUVATE CARBOXYLASE, ITS GENE, AND PRODUCTION METHOD OF AMINO ACID.
13164. PI 94002203 FOLDING TOOTHBRUSH
13165. PI 94002204 AKB APPARATUS WITH HOT START FLASH PREVENTION.
13166. PI 94002205 SAMPLE PULSE GENERATOR FOR AUTOMATIC KINESCOPE BIAS SYSTEM.
13167. PI 94002207 VERTICAL PEARLING MACHINES AND APPARATUS FOR PRELIMINARY TREATMENT PRIOR TO FLOUR MILLING USING SUCH PEARLING MACHINES.
13168. PI 94002209 CIRCUIT ARRANGEMENT FOR CURRENT MEASUREMENT VIA A SWITCHING TRANSISTOR.
13169. PI 94002210 SULFONATION OF FATTY ACID ESTERS.
13170. PI 94002214 POWER AND FREE CONVEYOR UTILIZING A PAIR OF SWINGING HOOKS
13171. PI 94002215 AN APPARATUS FOR POLISHING THE PERIPHERY PORTION OF A WAFER.
13172. PI 94002216 SURFACE SHEET FOR ABSORBENT ARTICLES.
13173. PI 94002220 REINFORCED CONCRETE CONTAINING ANTI-MICROBIAL- ENHANCED FIBERS.
13174. PI 94002221 ANTIBACTERIAL AND ANTIFOULING OXATHIAZINES AND THEIR OXIDES.
13175. PI 94002222 RECORDING AND / OR REPRODUCING APPARATUS FOR RECORDING MEDIUM.
13176. PI 94002223 TRANSDERMAL THERAPEUTIC SYSTEM COMPRISING THE ACTIVE SUBSTANCE ACETYLSALICYLIC ACID.
13177. PI 94002224 ROLL-OUT DISPENSER FOR A BEVERAGE CARTON.
13178. PI 94002225 PROCESS FOR THE CENTRIFUGAL TREATMENT OF A STARCH-CONTAINING SUSPENSION.
13179. PI 94002228 BIOREMEDIATION OF HYDROCARBON CONTAMINATED SOILS AND WATER.
13180. PI 94002233 SMOKE PROJECTILE