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A comment on Patent US5443036 – Method of exercising a cat. Parent comment

Re:Patent US5443036 – Method of exercising a cat by jordigh on Friday October 23, 2015 @11:20AM (#10439124)
I mean, is that the actual legal term for expired patents? "Public domain"? I thought it was a term of art for copyright, not for patents.
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Re:Patent US5443036 – Method of exercising a cat by WildUtah on Friday October 23, 2015 @03:52PM (#10440920)
Yes. Also in patents.
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