Can claims in a PCT application refer to the description or drawings?

According to MPEP 1824, claims in a PCT application should generally avoid referring to the description or drawings. However, there are some exceptions: References to the description or drawings are allowed when absolutely necessary Technical features in claims can be followed by reference signs relating to drawings Reference signs should preferably be placed between parentheses…

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How should claims be numbered in a PCT application?

According to MPEP 1824, claims in a PCT application should be numbered as follows: Claims should be numbered consecutively in Arabic numerals The numbering should start anew when claims are amended The method of numbering amended claims is governed by the Administrative Instructions The MPEP cites PCT Rule 6.1, which states: “If there are several…

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How can claims be amended in a PCT application?

Claims in a PCT application can be amended at various stages, as described in MPEP 1824: During the international phase under PCT Article 19 after receiving the international search report During international preliminary examination if the applicant has filed a Demand During the national phase The MPEP states: “The claims can be amended during the…

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