|
Bob,
I know in the 70's Kodak was still tinkering
with the Kodachrome process. I don't know what the requirements are for a patent
and how much change is needed to request a new one. I assume that each
introduction of a new speed would constitute a new patent. I think a patent last
17 years. I can't remember if it is renewable for another 17 years.
Roy
In a message dated 5/18/2005 10:32:47 P.M. Eastern Daylight
Time, written_by@xxxxxxx writes:
> I doubt any essential Kodachrome patent is younger than 20 |
