Language:
Style:
A+ | a-

Patent Protection Ended

No. Patent No. Title
8881. PI 91001472 RING-SUBSTITUTED 2-AMINO-1, 2,3, 4-TETRA-HYDRONAPHTHALENES, 3-AMINOCHROMANES, AND 3-AMINOTHIOCHROMANES.
8882. PI 91001479 APPARATUS FOR AUTOMATICALLY OPERATING HIGH-PLACE WORKING VEHICLES.
8883. PI 91001480 INSECT REPELLENTS.
8884. PI 91001481 FABRIC SOFTENER COMPOSITION
8885. PI 91001482 METHOD FOR MANUFACTURING THE THROAT PORTION OF A METAL RACKET.
8886. PI 91001485 PERIODIC SYSTEM ORDERED RESCAN IN A CELLULAR COMMMUNICATIONS SYSTEMPERIODIC SYSTEM ORDERED RESCAN IN A CELLULAR COMMUNICATIONS SYSTEM.
8887. PI 91001487 COLOR PICTURE TUBE HAVING RESIDUE ELECTRON REMOVING MEANS.
8888. PI 91001491 OXIDE-COATED CATHODE FOR CRT AND MANUFACTURING METHOD THEREOF.
8889. PI 91001492 SMOKING ARTICLE.
8890. PI 91001493 LOADING UNIT FOR CASE WHICH HOUSES RECORDING DISK.
8891. PI 91001494 METHOD OF DRILLING OF THROUGH-HOLES IN PRINTED CIRCUIT BOARD PANELS.
8892. PI 91001495 METHOD AND APPARATUS TO START-UP A CONTROLLED FREEZING ZONE PROCESS AND PURIFY THE PRODUCT STREAM.
8893. PI 91001496 SEDIMENTATION CENTRIFUGE.
8894. PI 91001498 ALARM AND TEST SYSTEM WITH IMPROVED COUPLING CIRCUIT FOR A DIGITAL ADDED MAIN LINE.
8895. PI 91001501 OPTICAL DISC RECORDING APPARATUS.
8896. PI 91001502 RECORDING AND/OR REPRODUCING APPARATUS FOR OPTICAL DISCS
8897. PI 91001503 DISC RECORDING AND REPRODUCING APPARATUS.
8898. PI 91001504 TENNIS RACKET.
8899. PI 91001505 DISC-SHAPED RECORDING MEDIA AND RECORDING/REPRODUCING APPARATUS THEREFOR.
8900. PI 91001506 STABLE MICROEMULSION DISINFECTING DETERGENT COMPOSITION.