In citing documents or inserting references, applicants and examining divisions alike must use codes that allow the references to be retrieved without difficulty. This can be best achieved through consistent use of the WIPO Standards format:
WIPO Standards:
ST.14 (http://www.wipo.int/export/sites/www/standards/en/pdf/03-14-01.pdf)
ST.3 (http://www.wipo.int/export/sites/www/standards/en/pdf/03-03-01.pdf)
ST.16 (http://www.wipo.int/export/sites/www/standards/en/pdf/03-16-01.pdf)
These can be found on the WIPO website.
ST.3 (http://www.wipo.int/export/sites/www/standards/en/pdf/03-03-01.pdf)
ST.16 (http://www.wipo.int/export/sites/www/standards/en/pdf/03-16-01.pdf)
These can be found on the WIPO website.
However, in the case of deviation from these standards there is no need to correct the codes used, as long as straightforward retrieval of the citation(s) is possible.
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/f_ii_4_3_1.htm
Date retrieved: 17 May 2021