Method for preserving research records generated by computer

• US 5,754,933 A
• Filed: 07/19/1996
• Issued: 05/19/1998
• Est. Priority Date: 07/19/1996
• Status: Expired due to Fees

• Current Assignee: Invisible Images, Inc.
• Original Assignee: Invisible Images, Inc.
• Inventors: Orndorff, Joseph E.
• Primary Examiner(s): Braun, Fred L.
• Application Number:
  US08/684,497
• Time in Patent Office: 669 Days
• Field of Search: 399/366, 283/902, 380/51
• US Class Current: 399/366
• CPC Class Codes: G03G 21/04 Preventing copies being made of an original
• CPC Class Codes: H04N 1/00883 Auto-copy-preventive originals, i.e. originals that are designed not to allow faithful reproduction
• CPC Class Codes: Y10S 283/902 Anti-photocopy

Abstract

A system of preserving the integrity of research and comparable data regularly entered into an electronically accessible memory by printing it out periodically upon a form of protected document stock which reveals the fact of copying in every xerographic copy of an original sheet of such stock, and which is accounted for, sheet by sheet, through the use of a unique serial number assigned by the manufacturer of the stock and recorded by him as issued to a given customer/user, and by the use of a record of distribution maintained by the records custodian of a given customer/user to identify specific serially-numbered sheets of such stock as having been issued to a particular person on a particular date, and who collects or receives the printed out stock as a permanent record of the information recorded.

Claims

1. A method of preserving the integrity of research data regularly recorded by a researcher into an electronically accessible memory, which comprises the steps of:

preparing a lot of secured printed document stock comprising successive sheets which are preprinted with successive serial numbers and a number series code;

recording said lot of serially numbered sheets in a register which describes the individual sheets, identifies the party on whose behalf they were prepared, and the date of that party'"'"'s order therefor;

issuing a quantity of said numbered sheets to an individual researcher for recording his research data and observations;

maintaining a record of the issuance of such sheets by researcher, serial numbers, and date of issuance;

causing said researcher to print out periodically from said electronically accessible memory onto consecutively numbered sheets of said secured stock his accumulated data and observations and to sign and date the same and to have the same witnessed; and

collecting and preserving said signed and witnessed sheets in a repository maintained separately from said researcher;

wherein the secured character of said document stock is established by providing thereon a printed field of halftone dots of size respectively above and below the copying threshold of xerographic copying wherein the small dots fail to appear in xerographic copies and reveal a latent legend indicating that the copy is counterfeit, the absence of said legend in a xerographic copy indicating that a purported original is not bona fide.

2. The method of claim 1 wherein the printing out of said data and observations, and the collecting of the sheets bearing the same, is effected daily.

3. The method of claim 1 wherein the bona fides of said secured document stock is verifiable by visible reaction to a commonly available chemical substance in reactable form.

4. The method of claim 3 wherein said stock is impregnated with a substance which turns brown upon contact with liquid bleach.

5. The method of claim 1 wherein said steps of preparing and recording are performed by a party other than the party for whom said sheets were prepared, and who maintains permanent custody of said register.

6. The method of claim 5 wherein said register itself is made upon said serially numbered stock.

7. The method of claim 5 or 6 wherein a duplicate original of said register is furnished by said other party to the party on whose behalf said lot of secured document stock was prepared, and maintained by the latter in said repository.