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Patent Fees. In the United Kingdom the fees charged by the State for a patent which will continue in force for four years from the date of the application amount to £5. If the patentee desires his patent to continue in force after the expiration of the four years he must pay renewal fees of £5 for the fifth year, £6 for the sixth year, and so on to £14 for the fourteenth year. If a patent be kept in force for the full period of fourteen years, the total patent fees will amount to £100. The patent fees charged in the Colonies are considerably lower than this. In most of the Colonies the system of renewal fees in vogue in the United Kingdom prevails, but the intervals at which these fees are payable are longer than in the United Kingdom. Thus, in Canada £4 is payable on the application, a second £4 before the end of the sixth year, and a third £4 before the end of the twelfth year, making £12 in all. The following table gives the details of these fees in the several Self-governing Colonies : — Canada Application 20 dollars. Renewal Fee — Before end of 6th year ... ... 20 „ Before end of 12th year ... ... 20 „ Total 60 dollars. Newfoundland ... Patent 25 dollars. In addition to ordinary fee for documents under Great Seal of Colony. £ s. d. Australia Application 1 0 0 Complete specification 2 0 0 Grant of patent 5 0 0 Renewal Fee— Before end of 7th year ... : 5 0 0 Total ... £13 0 0 New Zealand ... Application ... ... ... ... ... 010 0 Complete specification ... ... ... 0 10 0 Grant of patent 200 Renewal Fee — Before end of 4th year ... ... ... 5 0 0 Before end of 7th year 10 0 0 Total £18 0 0 Cape Colony ... Application ... ... ... ... ... 210 0 Attorney-General's " Appointment " ... 2 4 6 Grant of patent ... 2 10 0 Renewal Fee— Before end of 3rd year ... ... ... 10 0 0 Before end of 7th year 20 0 0 Total £37 4 6 Natal Deposit of provisional specification 1 1 0 Notice to proceed 0 5 0 Attorney-General's " Appointment " ... 1 1 0 Attorney-General's warrant ... ... 1 1 0 Complete specification ... ... ... 1 1 0 Grant of patent 1 10 0 Renewal Fee— Before end of 3rd year 5 0 0 Before end of 7th year 10 0 0 Total £20 19 0