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. 27, 1987
Filed:
Nov. 07, 1985
Kenneth A Bushaw, Longmont, CO (US);
Louis A Bustamante, Longmont, CO (US);
James J McCurry, Boulder, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for producing duplex copies from a duplex original wherein only one copy of the odd or even sides of the original documents is made during the first circulation of the originals to and from the exposure platen. During each subsequent circulation of the original documents, excluding the last circulation, two copies of the odd or even sides of the original are produced and either stored in a buffer tray if one side of the copy sheet is blank or transported to an exit tray if duplex copying has been completed on the copy sheet. Only one copy of the odd or even sides of the original documents are made during the last circulation and transfered to the blank sides of the copy sheets in the buffer tray to complete a duplex copy.