US Patent 7150580 Tapered manhole sealing band and method for use
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Patent Inventor Names
Paul H. Ess0
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Patent abstract
The invention relates to a device and method for sealing a manhole structure. An elastomeric band with at least two different peripheries is sealingly engaged to at least two corresponding peripheries of the manhole structure. Adhesives and supplemental retaining bands may also be used to secure the elastomeric band to the manhole structure.
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US Patent 07150580 Tapered manhole sealing band and method for use US Patent 7150580 Tapered manhole sealing band and method for use
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Patent Number
07150580
Patent Number
7150580
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Official Website
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US Patent 07150580 Tapered manhole sealing band and method for use
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Is a
Patent jurisdiction
Patent number
07150580
Date of patent
December 19, 2006
Patent application number
11210594
Date Filed
August 24, 2005
Patent primary examiner
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