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Publication numberUSD167422 S
Publication typeGrant
Publication dateAug 5, 1952
Filing dateMay 7, 1951
Publication numberUS D167422 S, US D167422S, US-S-D167422, USD167422 S, USD167422S
InventorsTheodore Prisland
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Acoustic tile
US D167422 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

1952 'r. PRISLAND Des. 167,422

' ACOUSTIC TILE Filed Ma 1 1951 Wlh. ll HM m 1 W i,


Patent d g- 9 Des. 167,422

UNITED STATES PATENT OFFICE ACOUSTIC TILE Theodore Prisland, Hillside, Ill., assignor to The Celotex Corporation, Chicago, Ill., a corporation of Delaware Application May 17, 1951, Serial No. 15,231

Term of patent 7 years (0]. DIS-2) shown- THEODORE PRISLAND.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,554,180 Trader Sept. 15, 1925 2,198,688 Williamson Apr. 30, 1940 FOREIGN PATENTS Number Country Date 625,660 Great Britain July 1, 1949