Title:
Ceiling construction
United States Patent 3030670


Inventors:
Bigelow, Donald W.
Application Number:
US74862258A
Publication Date:
04/24/1962
Filing Date:
07/15/1958
Assignee:
Bigelow, Donald W.
Primary Class:
Other Classes:
52/378, 52/506.09
International Classes:
E04B9/26; E04B9/32
View Patent Images:
US Patent References:
2939543Louvered ceiling construction1960-06-07
2866233Acoustical ceiling structure1958-12-30
2822584Suspended ceiling construction1958-02-11
2734446N/A1956-02-14
2676679Joint construction1954-04-27
2659807Combination luminous and acoustical ceiling1953-11-17
2485090Channel clip1949-10-18
2270268Acoustical assembly1942-01-20
2121432Structural assembly1938-06-21
1864965Ceiling construction1932-06-28