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:
May. 11, 2004
Filed:
Sep. 21, 2001
Bert Nolte, Notzingen, DE;
Otto Ficker AG, , DE;
Abstract
An envelope consisting of a front side and a rear side which are interconnected by side flaps, has a fold-back flap to which a layer of contact adhesive is applied. The adhesive used is a strong contact adhesive which is effective without moistening or activation by any other means. The fold-back flap is laid against the rear side of the envelope for the purposes of transport and storage, an area coated with a parting agent being provided so that the adhesive can be detached before use. The envelope is closed by pressing the otherwise uncoated closing flap onto the adhesive-coated fold-back flap. The adhesive is applied to the fold-back flap by transfer, i.e. the adhesive is applied to the parting agent layer during production and then transferred to the fold-back flap when the latter is redressed.