Libman Broom Company

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D320889 Brush handleExpiredNov 22, 89Oct 22, 91[]
5010616 Slanted handle broomExpiredNov 27, 89Apr 30, 91[A46B]
D307981 Combined push broom head and scraperExpiredMar 30, 87May 22, 90[]
D307674 Brush handleExpiredJun 22, 87May 08, 90[]
D306525 Utility brush handleExpiredAug 19, 87Mar 13, 90[]
D306526 Dust brush handleExpiredSep 21, 87Mar 13, 90[]
D304649 Brush handleExpiredJun 22, 87Nov 21, 89[]
D303323 Brush handleExpiredJun 22, 87Sep 12, 89[]
D303178 Brush handleExpiredJun 22, 87Sep 05, 89[]
4862550 Roller mop sponge retainerExpiredDec 12, 88Sep 05, 89[A47L]
D302759 Wringer sponge mopExpiredAug 08, 89Aug 08, 89[]
4792256 Implement with connector joining handle to working headExpiredDec 10, 86Dec 20, 88[B25G]
4706323 Sponge mop retainer with retraction rod hook receiving catchExpiredDec 29, 86Nov 17, 87[A47L]
D287173 Liquid applicatorExpiredMay 03, 84Dec 09, 86[]
D284908 Broom capExpiredMay 03, 84Aug 05, 86[]
4553282 Mop headExpiredJan 15, 85Nov 19, 85[A47L]
4528713 Broom capExpiredMay 03, 84Jul 16, 85[A46B]
4509224 Refill sponge mop assemblyExpiredAug 03, 84Apr 09, 85[A47L]
4468830 Sponge mopExpiredJun 24, 83Sep 04, 84[A47L]
4468832 Refill sponge mop assemblyExpiredJun 24, 83Sep 04, 84[A47L]

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