<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-04</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000057497</issuerCik><issuerName>LAMSON &amp; SESSIONS CO</issuerName>        <issuerTradingSymbol>LMS</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0000937770</rptOwnerCik><rptOwnerName>MIXON AARON MALACHI III</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>INVACARE CORPORATION</rptOwnerStreet1><rptOwnerStreet2>P.O. BOX 4028, ONE INVACARE WAY</rptOwnerStreet2><rptOwnerCity>ELYRIA</rptOwnerCity><rptOwnerState>OH</rptOwnerState><rptOwnerZipCode>44035</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>COMMON STOCK</value></securityTitle><transactionDate><value>2003-08-04</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>371</value></transactionShares><transactionPricePerShare><value>5.0595</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>58159</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>See Footnote</value><footnoteId id="F1" /></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>COMMON STOCK</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>36000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value><footnoteId id="F2" /></directOrIndirectOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><footnotes><footnote id="F1">Held in Trust pursuant to Directors Deferred Compensation Plan - a 16b-3Plan.  Transaction(s) completed by Trustee as of August 4, 2003.</footnote><footnote id="F2">Direct Ownership: Total of 36,000 shares includes 6,000 shares held jointly with spouse.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ James J. Abel, Attorney-in-Fact for A. Malachi Mixon, III</signatureName><signatureDate>2003-08-06</signatureDate></ownerSignature></ownershipDocument>

