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What Do The +'s And -'s Mean In A Patent's Transaction History?

When viewing the transaction history for a patent you may have noticed that there are +'s and -'s next to some of the transactions. These are used to represent the types of events that have occurred.

You can view the transaction history for a patent by viewing the "Transaction" option given under "Legal Information" when you are viewing a patent.

There are three different types of transaction that can occur for a patent. These are positive, negative and neutral. Explanations of each of these are given below:

  • Positive - This is represented by a "+" and this is used to represent transactions which allow a patent to be kept in force. For example, "+SURCHARGE FOR LATE PAYMENT".
  • Negative - This is represented by a "-" and this is used to represent transactions which mean that a patent is close to becoming inactive or has become inactive. For example, "-EXPIRED DUE TO FAILURE TO PAY MAINTENANCE FEE".
  • Neutral - If neither symbol is next to a transaction it is considered neutral and this is used to represent transactions which have no effect on the patent's current status. For example, "CERTIFICATE OF CORRECTION".            

 


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