US4865328A (Expired)
1984-04-26
ASSIGNMENT
Owner Name UNITED STATES OF AMERICA AS REPRESENTED BY THE SEC
Free Format Text ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:ATTINELLO, JOHN S.;ROUSSEAU, DAVID G.;REEL/FRAME:004250/0565
Effective DATE 19840314
1993-03-11
PAYMENT
Year of Fee Payment 4
1997-04-22
MAINTENANCE FEE REMINDER MAILED
1997-09-14
FOR FAILURE TO PAY MAINTENANCE FEES
1997-11-25
-EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE
Effective DATE 19970917
2018-01-23
ON STATUS: PATENT DISCONTINUATION
Free Format Text PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
