US Patent Issued to Holweg Group on July 14 for "Reusable envelope with pre-cut closure flap, method and machine for manufaturing such an envelope" (French Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,599, issued on July 14, was assigned to Holweg Group (Molsheim, France).

"Reusable envelope with pre-cut closure flap, method and machine for manufaturing such an envelope" was invented by Freddy Oberhausser (Strasbourg, France) and Marc Friederich (Herrlisheim, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "An envelope comprises a closure flap (14) for closing and opening (15) by folding over a first wall (11) of the envelope (1) and comprises, on an inner face (140), a first adhesive layer (141) protected by protection means (17) formed by a sheet, a second adhesive layer (142) protected by the protection means (17) and separated from the f...