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:
Aug. 30, 1983
Filed:
Sep. 30, 1981
Applicant:
Inventor:
Eric Wood, Wellingborough, GB;
Assignee:
Insituform International, Inc., Monrovia, LR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B05D / ;
U.S. Cl.
CPC ...
427236 ; 156242 ; 427146 ; 427238 ;
Abstract
A method of lining a passageway, such as an undergound sewer is disclosed. A fluent but thixotropic cementitious composition is sprayed onto the surface of the passageway, to form a lining of predetermined thickness and before the material has had time to flow to change its distribution on the surface, a flexible tube is everted onto the applied material, holding it in position until it is sufficiently cured.
Wood, Eric. (1983). Lining of pipelines and passageways (U.S. Patent No. 4401696). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4401696
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile