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:
Nov. 24, 1981
Filed:
Feb. 22, 1980
Applicant:
Inventors:
David L Ruff, Torrance, CA (US);
N Gokul Nath, Carson, CA (US);
Assignee:
Grefco, Inc., Bala Cynwyd, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
252 62 ;
Abstract
Fire resistant, loose-fill, thermal insulation made of a mixture of particulate expanded perlite and cellulose fiber. The mixture is rendered non-settling and resistant to separation by applying a permanently tacky material to the particulate expanded perlite.
Quick Actions:
Ruff, David. (1981). Loose-fill, thermal insulation (U.S. Patent No. 4302344). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4302344
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile