519. Amendment extending disclosure.

(vii)     Extensions to Disclosure and Protection

519.     Amendment extending disclosure.

A patent is invalid if the matter disclosed1 in the specification of the patent extends beyond that disclosed in the application for the patent as filed2, because of amendments made to the specification since the date of filing.

Similarly, a patent granted on a divisional application3, or a new application filed4 following a dispute as to title, will be invalid if the matter disclosed in the new specification extends beyond that disclosed in the patent application5.