US4553718A (Expired)
1982-09-30
ASSIGNMENT
Owner Name BOEING COMPANY THE 7755 MARGINAL WAY SOUTH, SEATTL
Free Format Text ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PINSON, GEORGE T.;REEL/FRAME:004051/0722
Effective DATE 19820902
1989-06-20
MAINTENANCE FEE REMINDER MAILED
1989-08-10
PAYMENT
Year of Fee Payment 4
1989-08-11
FOR LATE PAYMENT
1993-06-22
MAINTENANCE FEE REMINDER MAILED
1993-11-21
FOR FAILURE TO PAY MAINTENANCE FEES
1994-02-01
-EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE
Effective DATE 19930912
2018-01-23
ON STATUS: PATENT DISCONTINUATION
Free Format Text PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
