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. 30, 1993
Filed:
May. 24, 1991
Applicant:
Inventors:
James L Guthrie, Ashton, MD (US);
Narendar P Luthra, Columbia, MD (US);
Clifton L Kehr, Silver Spring, MD (US);
Darwin S Bull, Baltimore, MD (US);
Assignee:
Hampshire Chemical Corp., Lexington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ;
U.S. Cl.
CPC ...
424410 ; 424 84 ; 424 7817 ; 43 4206 ; 523124 ;
Abstract
A degradable article comprising a polyurethane polymer gel or foam whose polymer structure contains hydrolytically unstable ester linkages and various additives. The article can be constructed so that some of the additives are released from the article at a sustained rate. In a preferred embodiment the additives are sensory stimulants for marine or aquatic organisms and the article is used as bait for those organisms.