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:
Apr. 23, 2002
Filed:
Jul. 26, 1999
Steven Kwan, Kowloon, HK;
Abstract
A container for liquids having a receptacle suitable for containing a liquid, the receptacle having a wall portion and a floor portion joined to contain liquid, the wall portion having an aperture suitable for allowing a substantial portion of the liquid to be viewed therethrough; and a window means for allowing a user to view the liquid contained in the receptacle, the window means being located contiguous with the aperture so as to prevent liquid from escaping from the receptacle through the aperture. The window means has an outer window crystal configured to overlap the aperture when located thereover; an inner window crystal having substantially the same dimension as the outer window crystal and at least one of the inner window crystal or outer window crystal having a raised portion located substantially around its perimeter, the raised portion juxtaposed with the aperture so as to mate with the aperture and protrude through the aperture when the window crystal is located over the aperture; and a sealing ring configured to fit within a space between the inner window crystal and the wall portion when the inner window crystal is located over the aperture.