amended specification

A change in the specification as filed in the first instance, or the subsequent filing of a new one, whereby a patent is still sought for the substance of the invention as originally claimed, or a part of it, cannot in any wise affect the sufficiency of the original application or the legal consequences flowing from it. To produce that result the new or amended specification must be intended to serve as the basis of a patent for a distinct and different invention, and one not contemplated by the specification, as submitted at the outset.