SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '52') AND (category.subclass = '477') ORDER BY type DESC, date, patent |
Total of 5 patents found where: Class is '52'; Subclass is '477';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1940 | ||||||
U | 2,198,450 | April 23, 1940 | Light Transmitting Structure Skylight construction using glass blocks |
CHERTKOF, Jack O. |
OU | |
1943 | ||||||
U | 2,318,362 | May 4, 1943 | Wall Construction Glass Block wall construction without mortar |
BOEGLEN, Durwood L. LOCKART, Edward P. |
OI | Owens-Illinois Glass Co. |
1957 | ||||||
U | 2,812,691 | November 12, 1957 | Skylights Skylight utilizing glass block |
BOYD, Robert A. |
OI | Owens-Illinois Glass Co. |
1961 | ||||||
U | 2,996,845 | August 22, 1961 | Structural Panel and Building Wall Construction Utilizing Same Panellized glass block wall construction |
CIPRIANI, Chester C. STARK, Charles H. |
KI | Kimble Glass Co. |
U | 3,012,378 | December 12, 1961 | Light Transmitting Blocks Glass Block |
BOYD, Robert A. |
OI | Owens-Illinois Glass Co. |
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