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:
Sep. 09, 2003
Filed:
Jan. 10, 2000
Applicant:
Inventors:
John S. Springer, San Anselmo, CA (US);
Jerry Lee Tappa, Livermore, CA (US);
Bruce George Pound, Menlo Park, CA (US);
Assignee:
Indicator Technologies, Inc., San Anselmo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 1/315 ; A61F 1/320 ;
U.S. Cl.
CPC ...
A61F 1/315 ; A61F 1/320 ;
Abstract
A method and apparatus for gauging the levels of pH in the interiors of articles such as diapers, incontinence garments, pads, catamenial products, bedding, and would dressings are disclosed. This method and apparatus include sensing devices and relay systems for displaying the pH on the outside of the articles that provide visual and/or audible warnings that toxic levels are approaching and that it is time to remove and replace the article.