INPADOC Patent Family US4591508 (Original INPADOC file)
Publication No. Publication date Filing No. Priority Status Source Data
US 4591508A 1986-05-27 US 36690282A 19820409 US 34852382A 19820212
US 36690282A 19820409		 Expired National register (PAIR)

INPADOC Legal Status 
US4591508 (Expired)
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