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:
Feb. 18, 1992
Filed:
Dec. 11, 1989
Applicant:
Inventor:
James T Ligon, Sr, Almont, MI (US);
Assignee:
Ligon Brothers Manufacturing Company, Almont, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 71 ; 428 99 ; 428188 ;
Abstract
A barrier for closing and sealing a tubular passage while permitting ingress and egress of coating material into and out of the passage and with a mat of expandable adherent material secured to a barrier plate, the expansion and sealing actuated by exposure to curing heat.