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:
Aug. 17, 2021
Filed:
Jan. 25, 2018
Applicant:
U.s. Environmental Protection Agency, Washington, DC (US);
Inventor:
Elizabeth Ann Sams, Graham, NC (US);
Assignee:
U.S. ENVIRONMENTAL PROTECTION AGENCY, Washington, DC (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L 3/00 (2006.01); B01L 1/00 (2006.01);
U.S. Cl.
CPC ...
B01L 3/5021 (2013.01); B01L 1/50 (2013.01); B01L 3/50 (2013.01); B01L 3/5023 (2013.01); B01L 3/5082 (2013.01); B01L 3/5453 (2013.01); B01L 3/561 (2013.01); B01L 2200/023 (2013.01); B01L 2200/10 (2013.01); B01L 2200/141 (2013.01); B01L 2300/042 (2013.01); B01L 2300/046 (2013.01); B01L 2300/0609 (2013.01); B01L 2300/069 (2013.01); B01L 2300/0832 (2013.01); B01L 2300/0867 (2013.01); B01L 2400/0409 (2013.01);
Abstract
A double bottom test tube has a first tubular section having an open end and a rounded closed end. A second tubular section has an open end and a rounded closed end. The open end of the first tubular section is couplable to the open end of the second tubular section.