Click Here & Upgrade PDF Complete Expanded Features Unlimited Pages Documents 6. The registrar shall maintain an index of all granted patents according to their classification. 7. Office hours (1) The office will be open to the public from Mondays to Fridays from 08h00 to 15h00 except on the following days: (a) All days proclaimed public holidays in terms of any law; and (b) days which may from time to time be notified by placard posted in a conspicuous place at the office. (2) Whenever the last day fixed by the Act or by these regulations for doing any such thing falls on a day when the office is not open to the public it shall be lawful to do any such thing on the day next following such excluded day, or days, if two or more of them occur consecutively. 8. Power of attorney (1) Any agent appointed to act on behalf of any person shall file a power of attorney on Form P3. (2) On termination of the authority of an agent referred to in subregulation (1) the person concerned may act on his own behalf or appoint any other agent to act for him. Such other agent shall file a power of attorney. (3) The registration of an assignment shall not revoke a power of attorney previously given, unless the assignee files a power of attorney in terms of subregulation (2). (4) An agent who withdraws from proceedings under the Act may do so on notice to the registrar. (5) Upon withdrawal of an agent the provisions of subregulation (2) shall apply. (6) Where any change is made in the authorisation of an agent referred to in subregulation (1) the principal shall, within one month of the date of such change or such further period as the registrar may allow, change his address for service in terms of section 87 of the Act by lodging Form P4. 9. Address for service On all documents lodged in terms of the Act there shall be stated the address for service of the person by or on behalf of whom the document has been lodged. 10. Any change of address for service shall be made by lodging Form P4. 11. Corrections or alterations Except where specific provision is made for the use of special forms, any application or request to the registrar for the correction of an error in any document or for the alteration of any entry on a document or on the register shall be made on Form P4. 12. D ocuments Subject to the provisions of section 30 (6) (c) of the Act, all documents other than drawings, priority documents or a specification lodged in terms of section 30 (6) (a) (iii) shall be in one of the official languages of the Republic.