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Patent Protection Ended

No. Patent No. Title
10341. PI 92001739 SIGNAL STRENGTH CONTROLLED DIRECTED RETRY IN A MOBILE RADIOTELEPHONE SYSTEM.
10342. PI 92001740 ATTENUATION OF POLYMER SUBSTRATE DEGRADATION DUE TO ULTRAVIOLET RADIATION.
10343. PI 92001741 LIQUID DETERGENT COMPOSITION.
10344. PI 92001742 SURFACE TREATMENT METHOD OF A COPPER FOIL FOR PRINTED CIRCUITS.
10345. PI 92001743 METHOD OF LIQUEFACTION OF NATURAL GAS.
10346. PI 92001747 PROCESS FOR UPGRADING A HYDROCARBONACEOUS FEEDSTOCK AND APPARATUS FOR USE THEREIN.
10347. PI 92001748 AN ARRANGEMENT FOR PAINTING AN EXTENDED OBJECT MOVING CONTINUOUSLY IN ITS LONGITUDIAL DIRECTION.
10348. PI 92001759 DRUM BRAKE ACTUATOR.
10349. PI 92001760 APPARATUS AND METHOD USING COMPRESSED CODES FOR TELEVISION PROGRAM RECORD SCHEDULING.
10350. PI 92001761 METHOD OF ASSIGNING A VOICE/DATA CHANNEL AS A TEMPORARY CONTROL CHANNEL IN A RADIO COMMUNICATIONS SYSTEM.
10351. PI 92001763 ABSORBENT ARTICLE HAVING FLAPS AND ZONES OF DIFFERENTIAL EXTENSIBILITY.
10352. PI 92001764 PROCESS FOR ENHANCING THE DEWATERABILITY OF WASTE SLUDGE FROM MICROBIOLOGICAL DIGESTION.
10353. PI 92001770 AIR TREATMENT PLANT FOR FOODSTUFFS.
10354. PI 92001771 AIR TREATMENT PLANT FOR FOODSTUFFS.
10355. PI 92001772 AIR TREATMENT PLANT FOR FOODSTUFFS.
10356. PI 92001773 APPARATUS AND PROCESS FOR COLOURING TEXTILE ARTICLES.
10357. PI 92001774 POLYHYDRIC PHENOL, AND EPOXY RESIN AND EPOXY RESIN COMPOSITION DERIVED THEREFROM.
10358. PI 92001776 POLYHYDRIC PHENOL FROM NAPHTHALDEHYDE AND EPOXY RESIN OBTAINED USING THE SAME.
10359. PI 92001777 TAPE CASSETTE CASE.
10360. PI 92001779 PERFUME PARTICLES.