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:
Aug. 13, 1991
Filed:
Jan. 27, 1989
Hitachi, Ltd., Tokyo, JP;
Abstract
In a communication system which is arranged to circulate an addressed electronic document among a plurality of terminals which are connected to one another through a transfer path and to sequentially add attest patterns indicative of the approvals of individual reviewing persons to the electronic document, a method for identifying the source of each person's approval symbol and amendments to the document. The data structure of each electronic document communicated between individual terminals is assembled in a data structure which separates the document content data from the attest patterns added to the document by the creating or reviewing person. If any reviewing person requests to amend the contents of the electronic document to which the attest patterns have been added, a display of only the content data of the above electronic document is presented to the reviewing person. The reviewing person then amends the content data of the document, the prior approval of the document is removed and the thus amended electronic document is recirculated.