The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2008
Filed:
Dec. 10, 1999
Mohammad Peyravian, Cary, NC (US);
Allen Roginsky, Durham, NC (US);
Nevenko Zunic, Wappingers Falls, NY (US);
Stephen M. Matyas, Jr., Manassas, VA (US);
Mohammad Peyravian, Cary, NC (US);
Allen Roginsky, Durham, NC (US);
Nevenko Zunic, Wappingers Falls, NY (US);
Stephen M. Matyas, Jr., Manassas, VA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A time stamping protocol has two stages referred to as the ticketing stage and the certification stage. During the ticketing stage, the document or other identifying data is sent to the TSA. The TSA generates a 'ticket' based on the document or other identifying data and a time indication derived from a trusted clock. The ticket, which serves as an unsigned time stamp receipt, is transmitted back to the document originator. During the certification stage, the holder of the ticket requests a certified time stamp receipt by presenting the ticket to the TSA. The TSA verifies the ticket and generates a signed time stamp receipt, called the ticket stub, which is then transmitted back to the document originator. The ticket stub serves as a 'universal time-stamp' that the holder of the ticket stub can use to prove the date of the document.