Limestone Memory Systems LLC

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Records under this name other than patents Limestone Memory Systems LLC holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

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Patent	Title	Status	Expires	Confidence
US 6,697,296	Clock Synchronous Semiconductor Memory Device Term ended Term ended May 9, 2022 · High confidence	Term ended	Term ended May 9, 2022	High confidence
US 6,233,181	Semiconductor memory device with improved flexible redundancy scheme Term ended Term ended Feb 17, 2019 · From the USPTO record	Term ended	Term ended Feb 17, 2019	From the USPTO record
US 6,545,931	Semiconductor Memory Device with Improved Flexible Redundancy Scheme Term ended Term ended Feb 17, 2019 · Medium confidence	Term ended	Term ended Feb 17, 2019	Medium confidence
US 6,678,195	Semiconductor Memory Device with Improved Flexible Redundancy Scheme Lapsed on the fee record Ended Jan 13, 2016 · Medium confidence	Lapsed on the fee record	Ended Jan 13, 2016	Medium confidence
US 6,449,199	Semiconductor Memory Device with Improved Flexible Redundancy Scheme Lapsed on the fee record Ended Sep 10, 2014 · Medium confidence	Lapsed on the fee record	Ended Sep 10, 2014	Medium confidence
US 5,805,504	Synchronous semiconductor memory having a burst transfer mode with a plurality of subarrays accessible in parallel via an input buffer Term ended Term ended no later than Sep 8, 2018 · Low confidence	Term ended	Term ended no later than Sep 8, 2018	Low confidence
US 5,894,441	Semiconductor memory device with redundancy circuit Term ended Term ended no later than Apr 13, 2019 · Low confidence	Term ended	Term ended no later than Apr 13, 2019	Low confidence
US 5,943,260	Method for high-speed programming of a nonvolatile semiconductor memory device Term ended Term ended no later than Aug 24, 2019 · Low confidence	Term ended	Term ended no later than Aug 24, 2019	Low confidence