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. 31, 2006
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 method for time stamping a digital document is disclosed. The document originator creates a time stamp receipt by combining the document or other identifying data and a digital time indication. The time stamp receipt is submitted to a time stamping authority having a trusted clock. The time stamping authority optionally validates the time stamp receipt and then computes the age of the time stamp receipt. The time stamping authority creates an aged time stamp receipt by combining the identifying data and time indication contained in the submitted time stamp receipt with the computed age of the time stamp receipt. The time stamping authority cryptographically binds the time information and identifying data in the aged time stamp receipt, e.g., by signing the combination of the identifying data, time indication, and computed age with a private signature generation key.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile