Patent Law FAQ
This FAQ answers all your questions about patent law, patent procedure, and the patent examination process.
MPEP 2500 – Maintenance Fees (2)
If you miss both the maintenance fee payment and the 6-month grace period, your patent will expire. However, the USPTO may accept late payments under certain conditions. According to MPEP 2501:
“The Director may accept the payment of any maintenance fee required by subsection (b) after the 6-month grace period if the delay is shown to the satisfaction of the Director to have been unintentional.”
To reinstate the patent, you must file a petition showing the delay was unintentional and pay the maintenance fee along with any required surcharges. If accepted, “the patent shall be considered as not having expired at the end of the grace period.”
To learn more:
A terminal disclaimer can affect the term of a patent, but it does not change the maintenance fee payment requirements. According to MPEP 2520:
“The term of a patent might be shortened, e.g., by a terminal disclaimer. If a patent will expire part way between the due dates set in 35 U.S.C. 41(b), or between the latest due date and the term set in 35 U.S.C. 154, it is still required that the entire maintenance fee amount for the due date be paid.”
This means that even if a terminal disclaimer shortens the patent term, you are still obligated to pay the full maintenance fee for each due date that occurs before the patent expires. The USPTO does not prorate or reduce maintenance fees based on a shortened patent term resulting from a terminal disclaimer.
To learn more:
MPEP 2501 – Introduction (1)
If you miss both the maintenance fee payment and the 6-month grace period, your patent will expire. However, the USPTO may accept late payments under certain conditions. According to MPEP 2501:
“The Director may accept the payment of any maintenance fee required by subsection (b) after the 6-month grace period if the delay is shown to the satisfaction of the Director to have been unintentional.”
To reinstate the patent, you must file a petition showing the delay was unintentional and pay the maintenance fee along with any required surcharges. If accepted, “the patent shall be considered as not having expired at the end of the grace period.”
To learn more:
MPEP 2520 – Maintenance Fee Amounts (1)
A terminal disclaimer can affect the term of a patent, but it does not change the maintenance fee payment requirements. According to MPEP 2520:
“The term of a patent might be shortened, e.g., by a terminal disclaimer. If a patent will expire part way between the due dates set in 35 U.S.C. 41(b), or between the latest due date and the term set in 35 U.S.C. 154, it is still required that the entire maintenance fee amount for the due date be paid.”
This means that even if a terminal disclaimer shortens the patent term, you are still obligated to pay the full maintenance fee for each due date that occurs before the patent expires. The USPTO does not prorate or reduce maintenance fees based on a shortened patent term resulting from a terminal disclaimer.
To learn more:
Patent Law (2)
If you miss both the maintenance fee payment and the 6-month grace period, your patent will expire. However, the USPTO may accept late payments under certain conditions. According to MPEP 2501:
“The Director may accept the payment of any maintenance fee required by subsection (b) after the 6-month grace period if the delay is shown to the satisfaction of the Director to have been unintentional.”
To reinstate the patent, you must file a petition showing the delay was unintentional and pay the maintenance fee along with any required surcharges. If accepted, “the patent shall be considered as not having expired at the end of the grace period.”
To learn more:
A terminal disclaimer can affect the term of a patent, but it does not change the maintenance fee payment requirements. According to MPEP 2520:
“The term of a patent might be shortened, e.g., by a terminal disclaimer. If a patent will expire part way between the due dates set in 35 U.S.C. 41(b), or between the latest due date and the term set in 35 U.S.C. 154, it is still required that the entire maintenance fee amount for the due date be paid.”
This means that even if a terminal disclaimer shortens the patent term, you are still obligated to pay the full maintenance fee for each due date that occurs before the patent expires. The USPTO does not prorate or reduce maintenance fees based on a shortened patent term resulting from a terminal disclaimer.
To learn more:
Patent Procedure (2)
If you miss both the maintenance fee payment and the 6-month grace period, your patent will expire. However, the USPTO may accept late payments under certain conditions. According to MPEP 2501:
“The Director may accept the payment of any maintenance fee required by subsection (b) after the 6-month grace period if the delay is shown to the satisfaction of the Director to have been unintentional.”
To reinstate the patent, you must file a petition showing the delay was unintentional and pay the maintenance fee along with any required surcharges. If accepted, “the patent shall be considered as not having expired at the end of the grace period.”
To learn more:
A terminal disclaimer can affect the term of a patent, but it does not change the maintenance fee payment requirements. According to MPEP 2520:
“The term of a patent might be shortened, e.g., by a terminal disclaimer. If a patent will expire part way between the due dates set in 35 U.S.C. 41(b), or between the latest due date and the term set in 35 U.S.C. 154, it is still required that the entire maintenance fee amount for the due date be paid.”
This means that even if a terminal disclaimer shortens the patent term, you are still obligated to pay the full maintenance fee for each due date that occurs before the patent expires. The USPTO does not prorate or reduce maintenance fees based on a shortened patent term resulting from a terminal disclaimer.
To learn more: