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Patent Protection Ended

No. Patent No. Title
10221. PI 92001496 IC CARRIER OR IC SOCKET.
10222. PI 92001498 RECOVERY OF 3,4-EPOXY-1-BUTENE FROM 1,3-BUTADIENE OXIDATION EFFLUENTS.
10223. PI 92001499 APPARATUS FOR RAPID PLASMA TREATMENTS AND METHOD
10224. PI 92001502 ELECTRONIC AUTOMATIC TEMPERATURE CONTROL.
10225. PI 92001503 RARE EARTH OXYSULFIDE PHOSPHOR AND HIGHT RESOLUTION CATHODE RAY TUBE EMPLOYING IT.
10226. PI 92001509 HEXA-AND OCTAHYDROBENZO (F) QUINOLINONES, PHARMACEUTICAL FORMULATION CONTAINING THOSE COMPOUNDS AND THEIR USE AS STEROID 5(ALPHA)-REDUCTASE INHIBITORS
10227. PI 92001510 CUTTING AND CLAMPING SLEEVE CONTACT.
10228. PI 92001512 PULSE-WIDTH-MODULATION METHOD FOR REOVIDING EXTENDED LINEARITY,REDUCED COMMUTATION LOSSES AND INCREASE IN INVERTER/CONVERTER OUTPUT VOLTAGE.
10229. PI 92001519 APPARATUS AND METHOD USING COMPRESSED CODES FOR RECORDER PROGRAMMING
10230. PI 92001524 STRUCTURE OF KEY SWITCH
10231. PI 92001529 INTERCHANGEABLE PROCESS CONNECTION RESISTANT TO INSTALLATION ERRORS.
10232. PI 92001530 DISPOSABLE DIAPERS
10233. PI 92001536 BLANKING INTERVAL VOLTAGE DEVIATION COMPENSATOR FOR INVERTERS AND CONVERTERS.
10234. PI 92001537 PROCESS FOR PREPARING PROTECTED PARTICLES OF WATER SENSITIVE MATERIAL.
10235. PI 92001538 IMPROVED METHOD FOR SOLUTE TRANSFER BETWEEN SOLID AND LIQUID PHASES.
10236. PI 92001539 CASE FOR A DISC CARTRIDGE.
10237. PI 92001540 APPARATUS FOR FORMING POROUS PREFORM USED TO FABRICATE OPTICAL FIBER.
10238. PI 92001541 SOLENOID LOCK.
10239. PI 92001543 METHOD AND COMPOSITIONS FOR DIFFUSION PATTERING.
10240. PI 92001545 FREQUENCY-MODULATED CONVERTER WITH A SERIES-PARALLEL RESONANCE.