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:
Apr. 30, 1991
Filed:
Mar. 09, 1989
Johannes H Dinnissen, Venlo, NL;
Augustinus W Lambregts, Venlo, NL;
OCE-Nederland B.V., , NL;
Abstract
The invention described is a method of and machine for duplex copying images present in order on both sides of two original sheets in which, in a first cycle, an image of the first original page is applied twice and then an image of the third original page is applied twice to a separate blank receiving sheets. Thereafter, in a second cycle, an image of the second original page is applied twice and then an image of the fourth original page is applied twice on the blank side of the returned receiving sheets which were already printed on one side. The two cycles are repeated for making further copies of the two original sheets printed on both sides.