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:
Jan. 13, 2015
Filed:
Mar. 14, 2012
John A. Thomas, Ellicott City, MD (US);
Jason E. Tiffany, Columbia, MD (US);
Lawrence W. Hunter, Ellicott City, MD (US);
Terry E. Phillips, Ellicott City, MD (US);
John A. Thomas, Ellicott City, MD (US);
Jason E. Tiffany, Columbia, MD (US);
Lawrence W. Hunter, Ellicott City, MD (US);
Terry E. Phillips, Ellicott City, MD (US);
The Johns Hopkins University, Baltimore, MD (US);
Abstract
A time-temperature indication device includes a first reservoir having a fluid disposed therein, and a capillary tube. The capillary tube is disposed proximate to the first reservoir to receive fluid from the first reservoir responsive to changes in viscosity of the fluid based on changes in temperature. The capillary tube restricts flow of the fluid out of the first reservoir into the capillary tube to enable fluid flow only in a single direction.