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Patent Protection Ended

No. Patent No. Title
4901. PI 89000549 APPARATUS AND METHOD FOR ACCESSING DATA STORED IN A PAGE MODE MEMORY.
4902. PI 89000550 METHOD AND APPARATUS FOR SELECTIVELY POSTING WRITE CYCLES USING THE 82385 CACHE CONTROLLER.
4903. PI 89000551 BIDIRECTIONAL BUFFER WITH LATCH AND PARITY CAPABILITY.
4904. PI 89000552 DELAYED CACHE WRITE ENABLE CIRCUIT FOR A DUAL BUS MICROCOMPUTER SYSTEM WITH AN 80386 AND 82385.
4905. PI 89000553 SYSTEM FOR ARRANGING CHIPS IN SERIES.
4906. PI 89000555 HEATING DEVICE FOR ELECTRIC MOSQUITO KILLING APPARATUS.
4907. PI 89000556 PROCESS FOR MANUFACTURING HIGH BULK DENSITY PARTICULATE FABRIC SOFTENING SYNTHETIC ANIONIC ORGANIC DETERGENT COMPOSITIONS.
4908. PI 89000557 PARTICULATE DETERGENT COMPOSITIONS AND MANUFACTURING PROCESSES.
4909. PI 89000558 STABLE ANTIDANDRUFF SHAMPOO COMPOSITIONS.
4910. PI 89000559 ROTATIONLESS DECORATIVE LIGHT BULB WITH FUSE.
4911. PI 89000560 AIRFOIL BLADE FOR IMPELLER FAN AND MANUFACTURING METHOD THEREOF
4912. PI 89000561 MOUNTING MECHANISM FOR AN AUTOMOTIVE AIR CONDITIONING COMPRESSOR.
4913. PI 89000563 FEMALE CONDOM
4914. PI 89000564 PAROMOMYCIN OR ITS DERIVATIVES OR SALTS THEREOF FOR PARENTERAL TREATMENT OF HUMAN PARASITIC DISEASES.
4915. PI 89000566 CURING OVEN SYSTEM FOR SEMICONDUCTOR DEVICES.
4916. PI 89000567 PREPARATION AND DISPENSING CONTAINER FOR HOT, MOIST TOWELS.
4917. PI 89000568 FLUID LOSS CONTROL ADDITIVES FOR OIL WELL CEMENTING COMPOSITIONS.
4918. PI 89000569 LIQUID CLEANING PRODUCTS.
4919. PI 89000570 SWITCHING CIRCUITRY
4920. PI 89000571 PROTECTION OF A FOOD AGAINST OXIDATION.