🚀 go-pugleaf

In article <1992Oct10.175812.1324@athena.cs.uga.edu> mcovingt@aisun3.ai.uga.edu (Michael Covington) writes:
>Hmmm, how old is Smith's copyright and has it been renewed, I wonder?
>When did the Smith Chart originally come out?

	Did Smith hold the copyright?  According to a reference I have (1)
	in front of me, he published the smith chart in Jan 1939 Electronics
	(and Jan 1944 Electronics).  That being the case, wouldn't Electronics
	hold the copyright?

	For the copyright police among us, it was custom at University of 
	Buffalo to exercise ones photocopying rights when the need arose 
	for more smith charts in the T-line class.  I don't think anyone
	(prof or students) purchased the charts from a publisher.  Given
	the focus of the moment, ie passing the course, it never occurred to
	us that we may have been stomping on Mr. Smiths intellectual property
	rights ;-)

>:- Michael A. Covington 

					Rick Spanbauer
					SUNY/Stony Brook

(1) Johnson, Walter C., Transmission Lines and Networks, (c) 1950, McGraw-Hill,
    pg 128.