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Some of these patents have been patent back in the mid 1900's. How do I know if these people are still alive? And if not, how can I take over the patent? Are the patents moved on to the next family member?
If the patent was issued in the mid 1900's, then the patent is long expired. No one can "take over" the patent because the patent information is now in the public domain and free for everyone to use.
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