PROFICIENT SYSTEMS, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0198,162 Method and system of collaborative browsingAbandonedSep 02, 04Sep 08, 05[G06F]
2005/0091,123 Systems and methods to facilitate selling of products and servicesAbandonedSep 20, 04Apr 28, 05[G06F]
2002/0083,134 Method and system of collaborative browsingAbandonedDec 22, 00Jun 27, 02[G06F]
4608725 Litter retrieving machineExpiredFeb 21, 85Sep 02, 86[E01H]
4603544 Litter retrieving machineExpiredJan 28, 85Aug 05, 86[A01D]
4561240 Apparatus for retrieving objects from the groundExpiredSep 09, 83Dec 31, 85[E01H, A01D]
4434011 Method and apparatus for retrieving objects from the groundExpiredMar 15, 82Feb 28, 84[B65F, A01B]

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