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:
Nov. 14, 2000
Filed:
Jul. 14, 1998
Applicant:
Inventors:
Adam Warwick Bell, Portland, OR (US);
Peter James Stragnola, San Rafael, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; A01N / ;
U.S. Cl.
CPC ...
5041161 ; 504358 ;
Abstract
Methods and devices for cheaply, simply and efficiently keeping drains clear of roots involving the delivery of a root retardent hormone into drain pipes by incorporating the hormone into a tablet that is placed into a drainage system such as a toilet tank, thereby delivering the hormone to the drain pipes each time the toilet is flushed.