mutual protection of inventions or the legal representative or assignee of that person, shall be entitled to a patent for the invention under this Act in priority to other applicants, and such patent shall have the same date as the date of the application in the United Kingdom or the Isle of Man or such foreign State as the case may be:
Provided that such application shall be made within twelve months from such person applying for protection in the United Kingdom or the Isle of Man or the foreign State with which the arrangement is in force
Provided also that nothing in this section contained shall entitle the patentee to recover damages for infringements happening prior to the date of the actual acceptance of his complete specification in the Commonwealth."
Thus this section provides that an application may be made in Australia based upon an application made in another country to which S. 103 of the Imperial Act (the Patents, Designs, and Trade Marks Act 1883) has been applied, there being a proviso that the application shall be made within twelve months of the application in the other country.
Section 56 in pars. e and f provides that when an application is made for a patent opposition may be notified upon the following grounds :-
" (e) That the invention is not novel or has been already in possession of the public with the consent or allowance of the inventor;
(f) That the invention has been described in a book or other printed publication published in the Commonwealth before the date of the application or is otherwise in the possession of the public."
The opponent relies upon these grounds. Section 121 (2) provides that :-
" (2.) The publication in the Commonwealth during the respective periods aforesaid of any description of the invention or the use therein during such periods of the invention shall not invalidate the patent which may be granted for the invention."
The question which arises is this -Are the objections mentioned in S. 56, pars. e and f, to which I have referred, open upon a convention application when the publication or use relied upon by the opponent is a publication or use in Australia between the application for letters patent in the other country and the date of the application in Australia ?
Section 121 provides that when a patent is granted in pursuance of an application made under this section the patent shall have the same date as the date of the application in the other country. When