YERMCO, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5140744 Modular multicell battery and rackExpiredJun 06, 90Aug 25, 92[B23P]
5114806 Perforated retainer for horizontal mount gelled-electrolyte cellsExpiredMar 19, 91May 19, 92[H01M]
4687718 Method of making a sealed lead-acid battery with a gel electrolyte and sealed lead-acid storage battery made according to this methodExpiredOct 24, 86Aug 18, 87[H01M]
4629965 Battery charger termination circuitExpiredFeb 26, 85Dec 16, 86[H02J]
4418464 Wrapping apparatus for industrial battery platesExpiredJul 31, 80Dec 06, 83[B23P, H01M]
4386141 Watering device for batteriesExpiredFeb 22, 82May 31, 83[H01M]
4328292 Photocured tubular battery electrode and method of making sameExpiredMay 05, 80May 04, 82[H01M]
4315829 Method of preparing a battery paste containing fibrous polyfluoroethylene for use in the plates of a lead-acid storage batteryExpiredJan 27, 78Feb 16, 82[C08L]
4285537 Sealed cell lift toolExpiredSep 14, 79Aug 25, 81[B66C]
4275131 Electric storage battery containerExpiredOct 02, 79Jun 23, 81[H01M]
4252872 Granulated lead oxides with teflonExpiredFeb 14, 80Feb 24, 81[H01M]
4245014 High pressure post seal for batteriesExpiredAug 30, 79Jan 13, 81[H01M]
4218526 Industrial battery stackExpiredMay 18, 79Aug 19, 80[H01M]

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