This system would provide for a true unitary patent that "may be granted, assigned or canceled in the territory of all the Contracting States with due regard to the invention patentability criteria provided for in the USSR legislation". The second version of the convention went less far: in line with the European Patent Convention, it provided for a single evaluation phase, but after approval, it would be converted in a bundle of national patents.
This system would offer a single, unified patent that "may be granted, assigned or canceled in all the Contracting States with consideration of the invention's patentability standards as outlined in USSR legislation". The second version of the convention took a more limited approach: similar to the European Patent Convention, it allowed for a single initial evaluation phase, but after approval, it would be transformed into a collection of national patents.