A.B. CHANCE COMPANY

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5171107 Method of underpinning existing structuresExpiredApr 01, 92Dec 15, 92[E02D]
5139368 Method of underpinning existing structuresExpiredDec 07, 90Aug 18, 92[E02D]
5120163 Foundation underpinning bracket and jacking tool assemblyExpiredDec 07, 90Jun 09, 92[E02D]
4804809 Motor operator for padmount switchgearExpiredOct 26, 87Feb 14, 89[H01H]
4781348 Adjustable banded aluminum transformer mountExpiredJul 31, 87Nov 01, 88[A47B]
4688143 Fuse well and housing for pad-mounted, double fused switchgearExpiredAug 26, 86Aug 18, 87[H02B, H02H]
4561231 Tower-foundation anchor interconnectionExpiredApr 29, 83Dec 31, 85[E02D]
4483058 Impact hammer elbow toolExpiredMar 03, 83Nov 20, 84[B23P]

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