Patent Explorer

Browse, filter, and analyze 3 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US5247564A Adaptive vehicle alarm detection and reporting system GTE Wireless Inc Expired / Lapsed 1990-10-24 1993-09-21 2010-10-24 0.0 yrs 14
US4972456A Rural radiotelephone system GTE Wireless Inc Expired / Lapsed 1989-02-10 1990-11-20 2009-02-10 0.0 yrs 5
US4964156A Cellular telephone unit capable of automatic interaction with audio services GTE Wireless Inc Expired / Lapsed 1989-12-01 1990-10-16 2009-12-01 0.0 yrs 7