Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 2, 2021
Patent Application Number
16367341
Date Filed
March 28, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
A backup including a radially inwardly disposed circumferentially continuous ring; a radially outwardly disposed circumferentially discontinuous ring, the circumferentially discontinuous ring comprising a plurality of segments arranged to overlap adjacent ones thereof about a circumference of the circumferentially discontinuous ring.
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