[net.unix-wizards] Set UID patent number?

johnl (04/12/83)

#N:ima:20400005:000:412
ima!johnl    Apr 11 16:28:00 1983

Could somebody at the Labs tell us the name and number of the set-UID
patent?  Looking it up in the Patent Office Gazette takes forever.

A copy of the patent certainly belongs in every machine room next to the
"live free or die" Unix license.

Thanks, as always, in advance.

John Levine, decvax!yale-co!jrl, ucbvax!cbosgd!ima!johnl,
{research|alice|rabbit|floyd|amd70}!ima!johnl
Levine@YALE (arpanet, I hope.)

guy (04/12/83)

United States Patent 4,135,240, Jan. 16, 1979

PROTECTION OF DATA FILE CONTENTS

Inventor: Dennis M. Ritchie, Summit, N.J.

With a big hardware block diagram and an explanation in terms of signals,
gates, etc. for something that exists only in sys1.c etc.