Patent Law FAQ
This FAQ answers all your questions about patent law, patent procedure, and the patent examination process.
MPEP 500 – Receipt and Handling of Mail and Papers (2)
The USPTO is not open for filing correspondence on Saturdays, Sundays, or federal holidays within the District of Columbia. However, there are exceptions:
- Correspondence deposited as Priority Mail Express® with the USPS in accordance with 37 CFR 1.10 is considered filed on the date of deposit, even on weekends or holidays
- Electronic filing systems may be available 24/7, but the official filing date will be the next business day
MPEP 510 cites 37 CFR 1.6(a)(1): “The Patent and Trademark Office is not open for the filing of correspondence on any day that is a Saturday, Sunday or Federal holiday within the District of Columbia.”
To access USPTO public information facilities:
- A valid Public User or Visitor’s badge is required
- Badges can be obtained from the Office of Security next to the Public Search Facility
- An On-line Service Card is required for access to all Public Search Facilities and on-line systems
MPEP 510 states: “A valid Public User or Visitor’s badge is required to enter USPTO facilities. This badge can be obtained from the Office of Security next door to the Public Search Facility located on the first floor of the Madison East Building, 600 Dulany Street, Alexandria, VA 22314.”
MPEP 510 – U.S. Patent and Trademark Office Business Hours (2)
The USPTO is not open for filing correspondence on Saturdays, Sundays, or federal holidays within the District of Columbia. However, there are exceptions:
- Correspondence deposited as Priority Mail Express® with the USPS in accordance with 37 CFR 1.10 is considered filed on the date of deposit, even on weekends or holidays
- Electronic filing systems may be available 24/7, but the official filing date will be the next business day
MPEP 510 cites 37 CFR 1.6(a)(1): “The Patent and Trademark Office is not open for the filing of correspondence on any day that is a Saturday, Sunday or Federal holiday within the District of Columbia.”
To access USPTO public information facilities:
- A valid Public User or Visitor’s badge is required
- Badges can be obtained from the Office of Security next to the Public Search Facility
- An On-line Service Card is required for access to all Public Search Facilities and on-line systems
MPEP 510 states: “A valid Public User or Visitor’s badge is required to enter USPTO facilities. This badge can be obtained from the Office of Security next door to the Public Search Facility located on the first floor of the Madison East Building, 600 Dulany Street, Alexandria, VA 22314.”
Patent Law (2)
The USPTO is not open for filing correspondence on Saturdays, Sundays, or federal holidays within the District of Columbia. However, there are exceptions:
- Correspondence deposited as Priority Mail Express® with the USPS in accordance with 37 CFR 1.10 is considered filed on the date of deposit, even on weekends or holidays
- Electronic filing systems may be available 24/7, but the official filing date will be the next business day
MPEP 510 cites 37 CFR 1.6(a)(1): “The Patent and Trademark Office is not open for the filing of correspondence on any day that is a Saturday, Sunday or Federal holiday within the District of Columbia.”
To access USPTO public information facilities:
- A valid Public User or Visitor’s badge is required
- Badges can be obtained from the Office of Security next to the Public Search Facility
- An On-line Service Card is required for access to all Public Search Facilities and on-line systems
MPEP 510 states: “A valid Public User or Visitor’s badge is required to enter USPTO facilities. This badge can be obtained from the Office of Security next door to the Public Search Facility located on the first floor of the Madison East Building, 600 Dulany Street, Alexandria, VA 22314.”
Patent Procedure (2)
The USPTO is not open for filing correspondence on Saturdays, Sundays, or federal holidays within the District of Columbia. However, there are exceptions:
- Correspondence deposited as Priority Mail Express® with the USPS in accordance with 37 CFR 1.10 is considered filed on the date of deposit, even on weekends or holidays
- Electronic filing systems may be available 24/7, but the official filing date will be the next business day
MPEP 510 cites 37 CFR 1.6(a)(1): “The Patent and Trademark Office is not open for the filing of correspondence on any day that is a Saturday, Sunday or Federal holiday within the District of Columbia.”
To access USPTO public information facilities:
- A valid Public User or Visitor’s badge is required
- Badges can be obtained from the Office of Security next to the Public Search Facility
- An On-line Service Card is required for access to all Public Search Facilities and on-line systems
MPEP 510 states: “A valid Public User or Visitor’s badge is required to enter USPTO facilities. This badge can be obtained from the Office of Security next door to the Public Search Facility located on the first floor of the Madison East Building, 600 Dulany Street, Alexandria, VA 22314.”