Granted Patent
B2
US 8,383,233 · App. 12/975,501 · Granted Feb 26, 2013
Ceiling tile base mat
Inventors:
Gregory O. Palm (Beavercreek, OH); Martin Brown (Gurnee, IL); Qing Claire Yu (Libertyville, IL); Bangji Cao (Naperville, IL)
Assignee:
USG Interiors, LLC
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Abstract
A water felted base mat for a suspended ceiling tile comprising on a weight basis about ½ mineral wool, starch binder, limited to about ⅛, newsprint, limited to about ⅛, and about ¼ expanded glass beads.
Claims (2)
1. A water felted base mat for a suspended ceiling tile comprising on a weight basis about ½ mineral wool, starch binder, limited to about ⅛, newsprint, limited to about ⅛, and about ¼ expanded glass beads from post-consumer recycled glass, the glass beads having a density of 25 lbs./ft 3 .
2. A water felted base mat as set forth in claim 1 , wherein the mat has a caliper of about ⅞″.
Assignments (2)
MERGER
Recorded Jan 5, 2012
From: USG INTERIORS, INC.
To: USG INTERIORS, LLC
Reel/Frame 027482/0300 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 12, 2011
From: PALM, GREGORY O.; BROWN, MARTIN; YU, QING CLAIRE; CAO, BANGJI
To: USG INTERIORS, INC.
Reel/Frame 025799/0480 →
Continuity (1)