INPADOC Patent Family US4439782 (Original INPADOC file)
Publication No. Publication date Filing No. Priority Status Source Data
US 4439782A 1984-03-27 US 20924080A 19801121 US 20924080A 19801121 Expired National register (PAIR)

INPADOC Legal Status 
US4439782 (Expired)
1984-05-22   CERTIFICATE OF CORRECTION
1984-08-14   CERTIFICATE OF CORRECTION