Origins of term "laptop" computer

FWIW, US Pat 5,268,816 filed Sept 28, 1982 uses the term ?laptop computers? throughout the specification but not in the claims.? The next usage (lap-top) was filed July 3, 1986 (4,788,658). A search of a newspaper archive finds the earliest usage of "laptop computer" in print in a Jan 1985 Knight Ridder column by Evelyn Richards ??84 computer predictions go awry,? which ended with the following paragraph. "They predict among other things a lap-top computer (dubbed Clamshell) from IBM ? Google News? earliest hits are ?lap top? in 1986. IEEE Xplore has its first hit a September 1986 Computer Magazine Ad for an add on "lOM-byte internal hard disk for Zenith Data Systems' Z-171 laptop computer.." The NY Times' first used it in Peter Lewis' column on Nov 5, 1985, as "THE Tandy Corporation has introduced a new portable computer, the Model 600. The designation might lead someone to suspect that the Model 600 is six times better than the Tandy Model 100, which is a delightful little laptop computer and one of the best bargains around for reporters, salesmen and others who need to take a briefcase-sized office along with them when they hit the road." Anyone have any earlier published dates? Tom