Nova Patents
US1852490A

Heat exchanger

Abstract

This record has no abstract on file.

Term

Term ended

Expired 5 April 1949, 77.5 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

Every citation, both ways

Citations
DocumentRelationOfficeCited during
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US2015107806A1Cited byUnited States of AmericaPre-grant
US3335790ACited byUnited States of AmericaSearch report
WO2007106669A3Cited byWorld Intellectual Property Organization (WIPO)International search
US2011203766A1Cited byUnited States of AmericaPre-grant
ITMI20082051A1Cited byItalySearch report
US2012186776A1Cited byUnited States of AmericaPre-grant
US4349950ACited byUnited States of AmericaSearch report
US4398567ACited byUnited States of AmericaSearch report
WO2010058261A1Cited byWorld Intellectual Property Organization (WIPO)International search
US4317268ACited byUnited States of AmericaSearch report
US2449822ACited byUnited States of AmericaSearch report
US2006225865A1Cited byUnited States of AmericaPre-grant
US3401682ACited byUnited States of AmericaSearch report
AU754348B2Cited byAustraliaSearch report
WO2007106669A2Cited byWorld Intellectual Property Organization (WIPO)Search report
WO8802442A1Cited byWorld Intellectual Property Organization (WIPO)International search
US5046548ACited byUnited States of AmericaSearch report
EP0468046A4Cited byEuropean Patent Office (EPO)Search report
US8162040B2Cited byUnited States of AmericaSearch report
US8162034B2Cited byUnited States of AmericaSearch report
US5533362ACited byUnited States of AmericaSearch report
US4316501ACited byUnited States of AmericaSearch report
US8833440B1Cited byUnited States of AmericaSearch report
EP0468046A1Cited byEuropean Patent Office (EPO)Search report
DE2912132A1Cited byGermanySearch report
US5375654ACited byUnited States of AmericaSearch report
US3134432ACited byUnited States of AmericaSearch report
US9897387B2Cited byUnited States of AmericaSearch report
WO8802442A1Cited byWorld Intellectual Property Organization (WIPO)International search
US3858646ACited byUnited States of AmericaSearch report
US9109813B2Cited byUnited States of AmericaSearch report
US4353350ACited byUnited States of AmericaSearch report
US3163210ACited byUnited States of AmericaSearch report
US8640765B2Cited byUnited States of AmericaSearch report