How your patent application is processed (page 2 of 4)

From: Canadian Intellectual Property Office

Maintenance Fees

You have to pay maintenance fees at specific times for your patent or patent application. The first payment is due no later than two years from the date you filed your application.

You may pay the maintenance fees every year or for several years up front if you want to. As the information below shows, maintenance fees increase on the 5th, 10th and 15th anniversaries of a patent application's filing date.

Anniversaries of filing of the application in Canada Fees
2, 3 and 4 Maintenance fees
(Schedule 2, Part 3, Item 8a))
5, 6, 7, 8 and 9 Maintenance fees
(Schedule 2, Part 3, Item 8b))
10, 11, 12, 13 and 14 Maintenance fees
(Schedule 2, Part 3, Item 8c))
15, 16, 17, 18 and 19 Maintenance fees
(Schedule 2, Part 3, Item 8d))

For more information, contact us.


An transfer is when the ownership of a patent or interest in an invention is legally transferred to someone else. For example, an inventor or employee could transfer their interest to their employer or to a corporation that can invest in and market the invention.

Every transfer is registered against a patent application or patent once the Patent Office has made sure that the ownership information is correct. If everything is in order, we send a recordal certificate. If there are problems, we send a letter of explanation within 4 weeks of receiving your documents.


Fees (Part 6, Item 33) are required for each application or patent to which the document relates.

For more information, contact us.

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