After the SPTO issues a Search Report the applicant has to request examination; in case of objections from the examiner, the claims may be amended and/or arguments filed, in a process leading to the grant or refusal of the application.
Third parties may file observations on the patentability, and the examiner may take them into account.
Oppositions may be filed within 6 months from the grant of the patent.
Appeals at the SPTO are possible against a decision to refuse the application, and against the decision in an opposition.
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