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Article 78
The joint owner of a patent application or patent may notify the other joint owners that
he is waiving his share for their benefit. As from the date on which such waiver is
entered in the National Register of Patents, said joint owner shall be discharged of
any obligations with regard to the other joint owners where they consent to said
waiver. The joint owners shall divide up the waived share in proportion to their rights
in the joint ownership, unless otherwise agreed.
Article 79
The provisions of Articles 77 to 78 above shall apply unless otherwise stipulated.
The joint owners may derogate therefrom at any time by means of regulations for
joint ownership.
Subsection VI Miscellaneous provisions
Article 80
The holder of such an exclusive right may waive it at any time, for either the entire
invention or for one or more claims to the patent.
Waiver must take the form of a written declaration by the patent owner or his agent.
In the latter case, a special waiver authorization must be attached to the declaration.
If the patent is jointly owned, waiver may only be effected if it is required by all of the
joint owners.
Where licenses or encumbrances have been entered in the National Register of
Patents, the declaration of waiver shall only be entertained if it is accompanied by the
consent of the owners of such rights.
Waiver shall be entered in the National Register of Patents. It shall come into force
on the date of such entry.
Article 81
A patent owner who has not paid the prescribed fees to renew his rights within the
time periods laid down shall forfeit said rights.
However, payment of the prescribed fees may be validly effected, in return for
payment of a surcharge, during an additional period of six months starting from the
date on which the rights are forfeited.
Article 82
A patent owner who has failed to pay the prescribed fees upon expiry of the sixmonth time period laid down in the second paragraph of Article 81 above shall have
his rights revoked.
Revocation shall come into force on the due date of the missed payment.