In 1911, the Indian Patents and
Designs Act, 1911, (Act II of 1911) was brought in replacing all the previous
legislations on patents and designs. This Act brought patent administration
under the management of Controller of Patents for the first time. The Act II of
1911 incorporated provisions of 1907 Act of UK. This act substituted the
expression "Exclusive privileges" with "Patent". Further,
the duration of Indian patent was made independent of duration of UK patent.
The Act II of 1907 was amended in
1920 to provide for entering into reciprocal arrangements with UK and other
countries for securing priority. In 1930, further amendments were made to
incorporate, inter-alia, provisions relating to grant of
secret patents, patent of addition, use of invention by Government, powers of
the Controller of Patents to rectify register of patent and increase of term of
the patent from 14 years to 16 years. In 1945, another amendment was made to
provide for filing of provisional specification and submission of complete
specification within nine months.
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