"psyshrike" wrote in message om...
"G.R. Patterson III" wrote in message ...
psyshrike wrote:

This _has_ to be in direct conflict with the USPTO. The only way you
can get a production certificate is if you already have a type
certificate. This means that _all_ new manufactured engines props or
aircraft have to be licensed, or designed from scratch. So every TC is
effectively a patent, with NO EXPIRATION DATE.

No, it isn't. You can make an absolute copy of a Continental engine and go
through the certification process. You then will have a type certificate for
that engine.


You are correct that you _can_ go through the whole process again. My
point is that this denies the right of the producer to the use of
prior art.

Safety of "production" and safety of "design" are two different
things. Presumably the FAA agrees becuase the type certificate and the
production certificate are different.

What the FAA doesn't do is differentiate between production and design
when it comes to the rights of the manufacturer. You must design,
_and_ produce in order to be airworthy. You can't get a PC without a
TC. The TC commits you to fully duplicate testing and engineering
right?

So getting a TC negates the benefits of prior art, thereby denying
your right to benefit from prior art, thereby effecting the exact same
outcome as a patent.



A STC builds on the previous design. Then the STC holder can install or license the install of the product...