<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-12-15</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000742112</issuerCik><issuerName>INVACARE CORP</issuerName>        <issuerTradingSymbol>IVC</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001207229</rptOwnerCik><rptOwnerName>MOORE DAN T III</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>ONE INVACARE WAY</rptOwnerStreet1><rptOwnerStreet2></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><derivativeTable><derivativeTransaction><securityTitle><value>Employee Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>29.8500</value></conversionOrExercisePrice><transactionDate><value>2003-12-15</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1" /></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>4573.0000</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-12-31</value></exerciseDate><expirationDate><value>2013-12-15</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Shares</value></underlyingSecurityTitle><underlyingSecurityShares><value>4573.0000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>20847.0000</value><footnoteId id="F2" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">The reporting person was granted options to purchase Common Shares (with tandem tax withholding rights) under the Invacare Corporation 2003 Performance Plan in reliance upon an exemption provided under Rule 16b-3.</footnote><footnote id="F2">The reporting person still holds previously reported options to buy 16,274 Common Shares (with tandem tax withholding rights) under the Invacare Corporation 1994 Performance Plan and the Invacare Corporation 2003 Performance Plan, in reliance upon the exemption provided by Rule 16b-3.  All options were granted between March 2, 1999 and December 16, 2003, at exercise prices between $16.3125 to $ 33.8438 per share, will expire between March 2, 2009 and December 16, 2013 and became or will become exercisable between March 31, 2000 and March 31, 2006.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Dan T. Moore, by Douglas A. Neary, his attorney-in-fact pursuant to Power of Attorney dated November 12, 2002 on file with the Commission</signatureName><signatureDate>2003-12-17</signatureDate></ownerSignature></ownershipDocument>

