Above ground sewage ejector system3/13/2023 ![]() ![]() 239000010865 sewage Substances 0.000 title claims abstract description 35. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US52205074A priority Critical Application filed by Marten's D Manufacturing Co Ltd filed Critical Marten's D Manufacturing Co Ltd Priority to US05/646,441 priority patent/US4032448A/en Application granted granted Critical Publication of US4032448A publication Critical patent/US4032448A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Marten's D Manufacturing Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US05/646,441 Inventor David Martens Current Assignee (The listed assignees may be inaccurate. Google Patents Sealed sewage ejector assemblyÄownload PDF Info Publication number US4032448A US4032448A US05/646,441 US64644175A US4032448A US 4032448 A US4032448 A US 4032448A US 64644175 A US64644175 A US 64644175A US 4032448 A US4032448 A US 4032448A Authority US United States Prior art keywords standpipe wall sewage rim discharge pipe Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4032448A - Sealed sewage ejector assembly US4032448A - Sealed sewage ejector assembly
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