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International Searching Authority (ISA). International Preliminary Examining Authority (IPEA). Invention. transmit reports*. is the object of. is filed with. transmit application. communicate. Patent application. Receiving Office (local patent office). PCT
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International Searching Authority (ISA) International Preliminary Examining Authority (IPEA) Invention transmit reports* is the object of is filed with transmit application communicate Patent application Receiving Office (local patent office) PCT International Bureau grant Designated Offices (foreign patent offices) Patents publish International Publication International Phase National Phase Months from Priority Date 0 12 16 18 22 28 30 File Local Application (Priority Date) File PCT Application with Receiving Office (International Filing Date) ISR & Written Opinion (IPRP I) International Publication File Demand for IPRP II (optional) IPRP II National Phase Entry (where Applicants seek Protections) * ISA transmit International Search Reports (ISR) & the Written Opinions / IPEA transmit International Preliminary Reports on Patentability II (IPRP II) (optional) Overview of the Patenting Process using the PCT System