WESTERN DIGITAL (SINGAPORE) PTE LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4743987 Linear actuator for a memory storage apparatusExpiredApr 12, 85May 10, 88[G11B]
4725904 Magnetic disk memory apparatus with improved contamination controlExpiredOct 05, 81Feb 16, 88[G11B]
4654737 Magnetic disk memory head carriage assembly employing backlash-free rack and pinion drive mechanismExpiredMar 26, 84Mar 31, 87[G11B]
RE32285 Linear actuator for a memory storage apparatusExpiredJun 13, 84Nov 11, 86[H02K, G11B]
4573094 Moving magnet disc drive actuatorExpiredAug 10, 83Feb 25, 86[H02K, G11B]
4562500 Mechanism for latching magnetic disk memory head/arm assembly in parking zoneExpiredMay 25, 83Dec 31, 85[G11B]
4553183 Memory storage apparatus having improved housing and base plate arrangementExpiredJun 28, 82Nov 12, 85[G11B]
4524399 Magnetic disk memory power supplyExpiredJun 02, 82Jun 18, 85[G04B, G05B, G11B]
4522303 Payload-protecting shipping containerExpiredDec 22, 83Jun 11, 85[B65D]
4495533 Disk memory indexing systemExpiredJun 28, 82Jan 22, 85[G11B]
4491888 Memory storage apparatus having vibration-dampened base plate arrangementExpiredJun 28, 82Jan 01, 85[G11B]
4489356 Enclosed disk drive with improved air filtration systemExpiredJun 24, 82Dec 18, 84[G11B]
4476404 Flexible conductor for supplying current to a pivotally movable electrical elementExpiredSep 23, 83Oct 09, 84[H02K]
4415941 Linear actuator for memory storage deviceExpiredJun 29, 81Nov 15, 83[G11B]

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