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For questions concerning the status of a patent. Please check 'Public Pair' first and ask only if you cannot find the desired information there or do not understand it. Explain in depth what your problem is.

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Have the Tree Lounge Advantage patents expired?

I was wondering if the Tree Lounge Advantage patents (e.g., US 5,954,158) are available to be purchased? I know the company has since closed. Have they expired or are they still valid? Any help would …
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