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:
Oct. 11, 2011
Filed:
Jun. 21, 2006
David Ernest Havens, Bellbrook, OH (US);
Patrick J. Hood, Bellbrrok, OH (US);
Teresa E. Havens, Bellbrook, OH (US);
Joel J. Everhart, Beavercreek, OH (US);
Aaron M. Schneider, Pittsburgh, PA (US);
David Ernest Havens, Bellbrook, OH (US);
Patrick J. Hood, Bellbrrok, OH (US);
Teresa E. Havens, Bellbrook, OH (US);
Joel J. Everhart, Beavercreek, OH (US);
Aaron M. Schneider, Pittsburgh, PA (US);
Cornerstone Research Group, Inc., Dayton, OH (US);
Abstract
The present invention utilizes the unique shape recovery properties of shape memory materials, especially shape memory polymers, to provide an inexpensive and easily identified method of determining when a product has been exposed to environmental conditions that would make it likely that the product has expired or is unfit for use. By allowing the shape memory material to alter its shape from a deformed shape to a memory shape in response to exposure to environmental conditions while attached to a visual indication device a viewer can easily determine if a product has expired.