On 11/8/2014 2:52 PM, Lostgallifreyan wrote:
rickman wrote in :

I don't know what logis is, but I would say you *are* being paranoid.
How long ago did Yamaha stop selling the DX7 or any product that might
contain similar technology? If you are using patented technology or
otherwise are infringing the rights of others, then I can't help you.


Ok, I admit paranoia, it's something I have trouble with sometimes, but even
so I'd rather play it safe purely because ignorance is a poor defence in law,
criminal or civil.

I won't be infinging any rights I know of, all my code is a derivation I made
myself by experiment, originally founded on Yamaha's expired patents. I've
asked Yamaha about what I am allowed to do with referencing their trademark
DX7. They may still regard that as a strict trademark, I have no way to know
till I get their reply.

The easiest way to find out about trademark is to use it and see if they
complain. All they will ask (or demand) is that you stop. In fact you
may not ever get a reply to your letter, but if they care about their
trademark they will *have* to respond to your usage because otherwise
they lose the trademark.

That said, it is very seldom that a company is willing to give up a
trademark on an old product. There always want to be able to revive the
product in a new incarnation.


The main issue is that other people have used a similar basis for their own
work, and if they think my methods appear to do as they did, there is nothing
stopping them launching a legal claim as the first way I'll even know they
care.

Why would they have any legal claim unless they had a patent? Your work
is only protected if it is patented.


It seems wise to try to reduce that risk. The best way is to pay for a
patent myself, openign the code to public domain but protecting right to sell
for several years, but I won't do that unless some potential threat looks
like being even more expensive. Ideally a patent should be issued for each
nation a product is exported and sold to. Expensive, for sure! I'm not sure
how if at all software donloading complicates the picture, but it seems much
safer legally to leave it so third parties have to IMport by their own
action and choice, that leaves me legally stronger, probably.

I learned an interesting trick. You don't need the actual patent unless
you want to stop others from using it. I think what you are trying to
do is to make it available to everyone, in essence to make it
unpatentable. To do that you merely need to establish prior art. A
great way to do that in the US is to file a preliminary patent
application. This only costs $300 and you don't need to follow up
unless you want the patent. But once you have filed, it establishes
prior art so that no one else can patent it... anywhere.

You don't really need a patent in each country unless you plan to be
suing people. Having the patent in that country makes that easier.
Most countries recognize patents from other countries, so it is not
really required.

--

Rick