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:
Jun. 03, 2014
Filed:
Mar. 14, 2013
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
William J. Feil, III, Woodbury, MN (US);
Andrew H. Tilstra, Shoreview, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B 1/94 (2006.01);
U.S. Cl.
CPC ...
Abstract
A firestopping apparatus including a sleeve with at least first and second airflow-blocking elements, with at least the first airflow-blocking element comprising a resiliently compressible body and being slidably movable generally along a long axis of the sleeve.
Feil, III, William. (2014). Firestopping apparatus with airflow-blocking elements (U.S. Patent No. 8739482). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8739482
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile