Re: publication delays...

[Steven M. Bellovin]

In message <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
 writes:
>
>
>Let's see.  Current patent law says that a patent is good
>for 20 years from the date of filing so I guess Friedman's
>patent expired in 1953.  Tough break, Bill.


But it was filed under the old law, so it's good till 2017.  I guess 
we'll all have to be careful about building any new rotor machines.


                --Steve Bellovin