The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 2000
Filed:
Apr. 09, 1997
Applicant:
Inventors:
Kouki Fukui, Osaka, JP;
Yasuhiro Kikumori, Osaka, JP;
Assignee:
Totaku Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02B / ; E02B / ; F16L / ;
U.S. Cl.
CPC ...
405 43 ; 405 36 ; 405 44 ; 405 45 ; 405 49 ; 138106 ; 138121 ; 138177 ;
Abstract
An underdrain pipe has a pipe wall in which wall portions rectangular in section and wall portions circular in section are disposed alternately in a longitudinal direction of the pipe, in which a number of water collecting small holes are formed in portions of the pipe wall, and in which the whole of the pipe wall is formed of material of synthetic resin or rubber.
Fukui, Kouki. (2000). Underdrain pipe (U.S. Patent No. 6076992). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6076992
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile