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:
Jul. 05, 1994
Filed:
May. 03, 1993
Applicant:
Inventor:
Steven K Wolff, Federal Way, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
229 / ; 220445 ;
Abstract
The invention is a paper cup of double walled construction with an air pocket between the walls. The cup may find use in keeping warm beverages warm and/or cold beverages cold for reasonable periods of time. In the preferred embodiment, a spiral band of paper is in connection with both the inner wall and the outer wall. This member keeps the walls apart to create the air pocket and provides structural rigidity. The cup may be made of relatively narrow width with a small air space between the inner and outer walls.