General Correspondence
You can electronically submit fee payments, documents or patent, request
national entry of an international application, or other correspondence
relating to applications and patents, with attached documents, if applicable,
in accordance with the Patent Act and Rules. Upon completion of the data entry
form, a letter will be automatically created for you. If you wish to pay fees
or correspond with our office using other means of communication, please refer
to our Contact us page
for more information.
Documents such as assignments or the specification of the application must be
provided in multi-page TIFF or PDF format except for sequence listings which
have to be provided in both a multipage TIFF or PDF file and in an ASCII file.
All further correspondence from CIPO will be sent according to your
preference. Since e-mail is currently unsecure, when your correspondence
relates to applications for patents which are not yet laid open, you may wish
to indicate that future correspondence should be sent by regular mail, to
provide better security for the information being transmitted. Please advise us
if you change your e-mail address so that all future correspondence can be sent
to you in a timely manner.
We encourage you to read the additional "Help" information available
when you are filling in the form. If you want to familiarize yourself with the
various aspects of a patent application and its preparation please go to the
tutorial on how to write a
patent application. Should you require technical assistance, please
contact us or submit a
Technical Problem Report form.
Pay fees
Payments can be made using:
- American Express, MasterCard or VISA
- CIPO Deposit Account
This is not a debit card account. Please do not include
any bank account information on the application. Contact the
Client Service Centre for more information.
System and Browser Requirements
You should review our
System and Browser Requirements to ensure you have the required software.
Strategis Registration
Before accessing any secure electronic services, you must first log on to the
Strategis secure server. If you do not have a Strategis account
click here to create one.
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