Rothmans of Pall Mall Canada Limited

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4793367 Linear layered cigaretteExpiredNov 26, 86Dec 27, 88[A24F, A24C, A24D]
4787401 Sculptured cigaretteExpiredNov 26, 86Nov 29, 88[A24F, A24C, A24D]
4754765 Hopperless cigarette making machinesExpiredMay 14, 86Jul 05, 88[A24C]
4716913 Composite cigarettesExpiredMay 13, 86Jan 05, 88[A24C, A24D]
4700719 Control of cigarette rod formationExpiredMay 13, 86Oct 20, 87[A24C]
4627447 Tobacco winnowing method and apparatusExpiredDec 14, 83Dec 09, 86[A24B]
4567903 Formation of tobacco material blendExpiredNov 09, 82Feb 04, 86[A24B]
4566470 Tobacco leaf processingExpiredOct 27, 83Jan 28, 86[A24B]
4557278 Tobacco lamina and stem processingExpiredFeb 23, 83Dec 10, 85[A24B]
4512353 Tobacco drying procedureExpiredFeb 16, 83Apr 23, 85[A24B]
4459999 Cigarette maker feederExpiredOct 22, 81Jul 17, 84[A24B, A24C]
4458698 Tobacco metering and feeding systemExpiredJul 14, 80Jul 10, 84[A24B, A24C]
4456018 Feeding tobacco cutting machinesExpiredMay 24, 82Jun 26, 84[A24B]
4446876 Tobacco metering and feeding systemExpiredJun 15, 83May 08, 84[A24B]
4419627 Measuring the moisture content of materialsExpiredJan 02, 81Dec 06, 83[H03K, G08B]
4386617 Tobacco stem shreddingExpiredMar 16, 81Jun 07, 83[A24B]
4369797 Feed mechanism for tobacco cutting machinesExpiredDec 10, 80Jan 25, 83[A24B]
4349037 Tobacco moistening and opening apparatusExpiredJun 11, 81Sep 14, 82[A24B]
4307736 Tobacco moistening and opening apparatusExpiredMar 03, 80Dec 29, 81[A24B]
4287897 Treatment and opening of oriental tobacco balesExpiredSep 26, 79Sep 08, 81[A24B]

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