What are the meanings of the patent document symbols?

Patent document symbols are symbols that indicate different stages of the patent application process. In Washington, these symbols are used to communicate with the United States Patent and Trademark Office (USPTO). The symbol “A” is a patent allowance, which indicates that the application has been approved, and that a patent will be issued. The symbol “B” is a patent publication, which means that the application has been reviewed and is awaiting examination. The symbol “C” is a patent appeal, which essentially tells USPTO that the patent applicant has appealed the rejection of the application. The symbol “D” is a patent application allowed, which means that USPTO has approved the application and that a patent will soon be issued. The symbol “E” is a patent maintenance fee, which indicates that the patent applicant must pay an annual fee to keep the patent in force. The symbol “F” is a patent expiration, which means that the patent is no longer valid. Finally, the symbol “G” is a patent issue fee, which indicates that the patent applicant must pay a final fee to receive their patent. All of these symbols are used to communicate important information about the patent application process.

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