FORM-20
THE PATENTS ACT, 1970
(39 of 1970)
APPLICATION FOR REVOCATION OF A PATENT
[See section 89(1) and rules 33-I and 80, and section 89(1) is modified by section 24C.]

I/We    1..........................................................................................................................
            …………………………………………………………………………………
hereby apply for revocation of Patent No………..dated……………granted to……………………for which the patentee……………..………. is for the following reasons, namely:
2........................................................................................................................................
………………………………………………………………….....................................
The details of documentary evidence in support of my/our interest and the reasons stated above are given below: 3……………………….
(a)………………………………………………………………………………….
(b)…………………………………………………………………………………
(c)…………………………………………………………………………………
I/We declare that the facts and matters stated herein are true to the best of my/our knowledge, information and belief.
My/Our address for service in India is:
4.................................................................................................................................
.........................................………………………………………………………….
Dated this……….day of 19……../20……….
Signature5
(              ) 6 
To
The Controller of Patents,
The Patent Office,
At…………………….
Fee: See the First Schedule.
1. Name, address and nationality of the applicant(s).
2. State the nature of the applicant”s interest, the facts on which he relies and the grounds on which the application is made.
3. Certified copies of all the documents are to be enclosed in duplicate.
4. Complete address including postal index number/code and state along with Telephone and Telefacsimile number(s).
5. To be signed by the applicant (s) or if the applicant(s) is/are absent from India, by authorised registered patent agent.
6. Name of the natural person who has signed.