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:
Jun. 15, 2021
Filed:
Dec. 04, 2018
Lawrence Michael Lau, San Francisco, CA (US);
Charlene Lyu, Campbell, CA (US);
Alexander Christopher Lau, Newtown, PA (US);
Lawrence Michael Lau, San Francisco, CA (US);
Charlene Lyu, Campbell, CA (US);
Alexander Christopher Lau, Newtown, PA (US);
Other;
Abstract
A double-walled container includes a top opening, and a bottom opening, opposite the top opening. A removable top cap engages with threads at the top opening and a removable bottom cap engages with threads at the bottom opening. The double-walled container includes an outer wall and an inner wall. A channel formed on and encircling the outer wall includes a vacuum port through which air between the outer and inner walls is drawn out to form an insulating space between the inner and outer walls. A band is positioned within the channel to cover the vacuum port.