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:
Jul. 20, 1993
Filed:
Apr. 23, 1991
Applicant:
Inventors:
Richard Pavelle, Winchester, MA (US);
Paul Burstein, Winchester, MA (US);
Ronald M Latanision, Winchester, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; G01D / ; A61K / ;
U.S. Cl.
CPC ...
2064591 ; 53411 ; 53454 ; 53471 ; 53472 ; 116206 ; 424454 ; 425804 ;
Abstract
A method of packaging, comprising the steps of disposing an article in a package and airtightly sealing an air sensitive reagent, which changes color upon contact with air, as at least part of the package for the article such that the seal must be broken to access the article and thereby cause the reagent to contact the air or another agent and change color. A semi-permeable membrane will allow the same reagent to function as a shelf-life indicator.