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:
May. 05, 1981
Filed:
Apr. 13, 1979
Applicant:
Inventors:
Michael J Duwell, Chicago, IL (US);
Paul B Specht, Wilmette, IL (US);
Assignee:
Heartland Chemicals, Farmer City, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
414412 ;
Abstract
A system for distributing granular material to the soil incorporates an enclosure for holding a container while a piercing and flap opening blade assembly is rotated through the wall of the container to tear open a flap at the bottom.