Title:
Luminous ceiling panel
United States Patent 2996417


Inventors:
Arnold, Wilson Bertram
Application Number:
US3331860A
Publication Date:
08/15/1961
Filing Date:
06/01/1960
Assignee:
Arnold, Wilson Bertram
Primary Class:
Other Classes:
362/354, 428/131, D26/120
International Classes:
B29C51/00; B29C65/02; E04B9/32; E04B9/34; E04C2/32; E04C2/54; E04D3/28; F21V3/00
View Patent Images:
US Patent References:
2913576Louver-diffuser1959-11-17
2860237Cellular diffusion panel1958-11-11
2850109Light-permeable sound-absorbing panel1958-09-02
2710335Light diffusing and sound absorbing unit1955-06-07
2695430Luminous panel1954-11-30
Foreign References:
IT539745B