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. 01, 2009
Filed:
Apr. 01, 2005
Applicants:
Robert Anthony Marin, Midlothian, VA (US);
Larry R. Marshall, Chesterfield, VA (US);
Amanda Dawn Miller, Avondale, PA (US);
Inventors:
Robert Anthony Marin, Midlothian, VA (US);
Larry R. Marshall, Chesterfield, VA (US);
Amanda Dawn Miller, Avondale, PA (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 47/00 (2006.01); D01F 6/00 (2006.01); B29B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A thin, uniform membrane comprising polymeric fibrils or a combination of fibrils and particles, wherein the fibrils have randomly convoluted cross-sections, and a process for making the membrane are disclosed. The membrane may be on the surface of a substrate as part of a composite sheet, or as a stand-alone structure.