Ceiling tile
Latest National Gypsum Company Patents:
- LIGHTWEIGHT CEMENTITIOUS PANEL POSSESSING HIGH DURABILITY
- FORMATION OF CEMENTITIOUS BOARD WITH LIGHTWEIGHT AGGREGATE BACKGROUND
- LIGHTWEIGHT CEMENTITIOUS PANEL POSSESSING HIGH DURABILITY BACKGROUND
- PROCESS FOR EXPANDING SMALL DIAMETER POLYSTYRENE BEADS FOR USE IN CEMENTITIOUS BOARD
- CONTROLLING THE EMBEDDING DEPTH OF REINFORCING MESH TO CEMENTITIOUS BOARD
Description
FIG. 1 is a plan view of a ceiling tile showing my new design; and
FIG. 2 is a sectional view of the ceiling tile of FIG. 1, taken along the lines 2-2.
Referenced Cited
U.S. Patent Documents
Other references
| D132478 | May 1942 | Friedman |
| D179524 | January 1957 | Polen |
| D234133 | January 1975 | Hazeley |
- Interiors, Nov. 1963, p. 143, stone sculptural facings.
Patent History
Patent number: D244296
Type: Grant
Filed: Aug 22, 1975
Date of Patent: May 10, 1977
Assignee: National Gypsum Company (Buffalo, NY)
Inventor: Thomas R. Smith (Glenwood, NY)
Primary Examiner: A. Hugo Word
Attorney: Robert F. Hause
Application Number: 5/606,960
Type: Grant
Filed: Aug 22, 1975
Date of Patent: May 10, 1977
Assignee: National Gypsum Company (Buffalo, NY)
Inventor: Thomas R. Smith (Glenwood, NY)
Primary Examiner: A. Hugo Word
Attorney: Robert F. Hause
Application Number: 5/606,960
Classifications
Current U.S. Class:
D25/97
International Classification: D2501;
International Classification: D2501;
