Patent Law FAQ

An application number consists of a series code and a serial number. It is assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened. For applications filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt containing a time and date stamp, application number, and confirmation number.

The MPEP states: ‘Application numbers consisting of a series code and a serial number are assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened.’ (MPEP 503)

The USPTO assigns application numbers to patent applications immediately after mail has been opened. According to MPEP 503, application numbers consist of a series code and a serial number. The series codes are assigned based on the type of application and the time period in which it was filed. For example:

• 01/ – 16/ for nonprovisional applications (utility, plant, and reissue), with different ranges for specific time periods
• 29/ for design applications
• 35/ for international design applications
• 60/, 61/, and 62/ for provisional applications
• 90/ for ex parte reexamination proceedings
• 95/ for inter partes reexamination proceedings
• 96/ for supplemental examination proceedings and resulting ex parte reexamination proceedings

The MPEP notes: “If an application is filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt that contains a time and date stamp, an application number and a confirmation number.”

It’s important to note that the application number on a filing receipt is the official number, which may differ from any preliminary number provided on a postcard receipt.

For more information on application number, visit: application number.

For more information on patent application types, visit: patent application types.

For more information on serial number, visit: serial number.

For more information on series code, visit: series code.

An application number consists of a series code and a serial number. It is assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened. For applications filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt containing a time and date stamp, application number, and confirmation number.

The MPEP states: ‘Application numbers consisting of a series code and a serial number are assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened.’ (MPEP 503)

The USPTO assigns application numbers to patent applications immediately after mail has been opened. According to MPEP 503, application numbers consist of a series code and a serial number. The series codes are assigned based on the type of application and the time period in which it was filed. For example:

• 01/ – 16/ for nonprovisional applications (utility, plant, and reissue), with different ranges for specific time periods
• 29/ for design applications
• 35/ for international design applications
• 60/, 61/, and 62/ for provisional applications
• 90/ for ex parte reexamination proceedings
• 95/ for inter partes reexamination proceedings
• 96/ for supplemental examination proceedings and resulting ex parte reexamination proceedings

The MPEP notes: “If an application is filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt that contains a time and date stamp, an application number and a confirmation number.”

It’s important to note that the application number on a filing receipt is the official number, which may differ from any preliminary number provided on a postcard receipt.

For more information on application number, visit: application number.

For more information on patent application types, visit: patent application types.

For more information on serial number, visit: serial number.

For more information on series code, visit: series code.

An application number consists of a series code and a serial number. It is assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened. For applications filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt containing a time and date stamp, application number, and confirmation number.

The MPEP states: ‘Application numbers consisting of a series code and a serial number are assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened.’ (MPEP 503)

The USPTO assigns application numbers to patent applications immediately after mail has been opened. According to MPEP 503, application numbers consist of a series code and a serial number. The series codes are assigned based on the type of application and the time period in which it was filed. For example:

• 01/ – 16/ for nonprovisional applications (utility, plant, and reissue), with different ranges for specific time periods
• 29/ for design applications
• 35/ for international design applications
• 60/, 61/, and 62/ for provisional applications
• 90/ for ex parte reexamination proceedings
• 95/ for inter partes reexamination proceedings
• 96/ for supplemental examination proceedings and resulting ex parte reexamination proceedings

The MPEP notes: “If an application is filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt that contains a time and date stamp, an application number and a confirmation number.”

It’s important to note that the application number on a filing receipt is the official number, which may differ from any preliminary number provided on a postcard receipt.

For more information on application number, visit: application number.

For more information on patent application types, visit: patent application types.

For more information on serial number, visit: serial number.

For more information on series code, visit: series code.

An application number consists of a series code and a serial number. It is assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened. For applications filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt containing a time and date stamp, application number, and confirmation number.

The MPEP states: ‘Application numbers consisting of a series code and a serial number are assigned by the Office of Patent Application Processing (OPAP) immediately after mail has been opened.’ (MPEP 503)

The USPTO assigns application numbers to patent applications immediately after mail has been opened. According to MPEP 503, application numbers consist of a series code and a serial number. The series codes are assigned based on the type of application and the time period in which it was filed. For example:

• 01/ – 16/ for nonprovisional applications (utility, plant, and reissue), with different ranges for specific time periods
• 29/ for design applications
• 35/ for international design applications
• 60/, 61/, and 62/ for provisional applications
• 90/ for ex parte reexamination proceedings
• 95/ for inter partes reexamination proceedings
• 96/ for supplemental examination proceedings and resulting ex parte reexamination proceedings

The MPEP notes: “If an application is filed using the USPTO patent electronic filing system, EFS-Web provides an Acknowledgement Receipt that contains a time and date stamp, an application number and a confirmation number.”

It’s important to note that the application number on a filing receipt is the official number, which may differ from any preliminary number provided on a postcard receipt.

For more information on application number, visit: application number.

For more information on patent application types, visit: patent application types.

For more information on serial number, visit: serial number.

For more information on series code, visit: series code.