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Method for preserving data in an electronic document

  • US 5,937,416 A
  • Filed: 03/25/1997
  • Issued: 08/10/1999
  • Est. Priority Date: 03/25/1997
  • Status: Expired due to Fees
First Claim
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1. A method for preserving entered data on an existing electronic document, the method comprising the steps of:

  • selecting the existing electronic document from a database;

    reading a code address for the existing electronic document to identify the existing electronic document as having a non-modifiable status;

    preventing new data from writing over the entered data when the code address identifies the non-modifiable status of the entered data to preserve the entered data so long as the existing electronic document remains in an electronic form; and

    annotating the existing electronic document to create an annotated electronic document from the existing electronic document including the existing data and additional data in a non-destructible format such that the existing data is preserved and readable when the additional data is entered over the existing data.

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