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.

Date of Patent:
Jul. 14, 2026

Filed:

Sep. 22, 2023
Applicant:

Pregis Llc, Chicago, IL (US);

Inventor:

Thomas D. Wetsch, Naples, FL (US);

Assignee:

Pregis LLC, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B 70/62 (2017.01); B31B 70/64 (2017.01); B31B 155/00 (2017.01); B31B 170/20 (2017.01);
U.S. Cl.
CPC ...
B31B 70/62 (2017.08); B31B 70/645 (2017.08); B31B 2155/002 (2017.08); B31B 2170/20 (2017.08);
Abstract

Envelopes for holding one or more items include a first and a second flexible wall. The second wall overlies, and is affixed to the first flexible wall. The second flexible wall can include a plurality of overlying layers of paper affixed to each other so as to define an interlayer region within which at least two of the plurality of overlying layers of paper are not adhered to each other.


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