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:
Apr. 04, 1989
Filed:
Jun. 23, 1987
Applicant:
Inventor:
Willfried Schramm, Ann Arbor, MI (US);
Assignee:
BioQuant, Inc., Ann Arbor, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128769 ;
Abstract
The present invention is an oral fluid collection article for placement in the buccal cavity of an individual for the collection and fittering of a saliva fluid. The collection article has a semi-permable membrane container enclosing an osmotic substance means.