Sun Lee
Accountancy at 40 Ave, Denver, CO
License number
Colorado 33237
Issued Date
May 8, 2015
Renew Date
Dec 1, 2015
Expiration Date
Nov 30, 2017
Type
Certified Public Accountant
Address
Address
20301 E 40Th Ave, Denver, CO 80249
Professional information
Sun Lee, Aurora CO
Work:
ERA
Aurora
(303) 481-4202
Aurora
(303) 481-4202
Test Tube For Easy Enumeration And Cultivation Of Anaerobic And Facultatively Anaerobic Microorganisms
US Patent:
4140489, Feb 20, 1979
Filed:
Feb 7, 1977
Appl. No.:
5/766220
Inventors:
Sun Y. Lee - Golden CO
International Classification:
B65D 104, C12B 102, G01N 110
US Classification:
1951035R
Abstract:
A test tube having an inner tube that allows one to insert a bar to create a dark background is described. This system is actually an ordinary or screw-capped test tube with a smaller sized test tube inverted and fused to the bottom. The design permits a thin layer of any agar medium to solidify around the inside edge of the larger tube. The colonies developed in the agar can then be easily counted by creating a dark background by inserting a dark colored rod through the opening of the inner tube.
Alternatively, a permanently dark-colored inner tube can be inverted and fused to the bottom of the outer tube. In this case, it is not necessary to insert a rod to create a dark background and the enumeration of microbial colonies is as easy as the method described above.