Authorized cash?

I recall a few months ago there was some discussion of having David
Chaum come out and work with some cypherpunks to get them started on
an implementation of digital cash.  Did anything ever come of that?

Chaum has a patent, I've heard, on the "blinding" that is an important
part of at least the simpler cash proposals.  If he were willing to
authorize a cypherpunks cash system it would remove one legal hurdle
to its implementation.  Does anyone know whether he might be willing to
do this?

Hal

[regarding Chaum's digital cash work and possibly using that for net.money]
> Chaum has a patent, I've heard, on the "blinding" that is an important
> part of at least the simpler cash proposals.  If he were willing to
> authorize a cypherpunks cash system it would remove one legal hurdle
> to its implementation.  Does anyone know whether he might be willing to
> do this?

Strangely enough, his secretary and I have been exchanging email trying to
arrange a time when he can catch me by phone for the past few days...

I will ask him :)

jim