BRONZEBASE LIMITED

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4817137 Apparatus for remotely determining hook status conditionsExpiredNov 30, 87Mar 28, 89[H04M]
4741022 Remote subscriber interaction systemExpiredDec 13, 85Apr 26, 88[H04M]
4529971 Alarm loop supervisionExpiredMar 14, 83Jul 16, 85[G08B]
4528423 Remote subscriber terminal unitExpiredJan 18, 84Jul 09, 85[H04M, G08B]
4527235 Subscriber terminal polling unitExpiredMar 15, 83Jul 02, 85[G06F]
4442320 Remote subscriber interaction systemExpiredDec 04, 81Apr 10, 84[H04M, G08B]

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