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. 01, 1984
Filed:
Mar. 30, 1982
Applicant:
Inventor:
Eric Wood, Wakefield, GB;
Assignee:
Insituform International Inc., Monrovia, LR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; F16L / ;
U.S. Cl.
CPC ...
428 36 ; 112424 ; 112426 ; 112428 ; 138128 ; 138151 ; 156 93 ; 156203 ; 156218 ; 156294 ; 1563042 ; 1563043 ; 428104 ;
Abstract
A tubular lining for lining passages is formed, such liner being constructed from a laminate comprising a resin absorbent layer and an impermeable skin. The laminate is wrapped to tubular form with the skin outermost and the free edges are butted together and are connected in this condition by a sewing operation. A sealing ribbon as applied over the sewing to seal the seam and stitching to prevent the flow of liquid or synthetic resin through the seam when the lining is used.
Wood, Eric. (1984). Manufacture of tubular laminates (U.S. Patent No. 4446181). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4446181
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile