ACF Industries, Incorporated

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5507235 Gravity outletExpiredJan 25, 94Apr 16, 96[B61D]
5448955 Gravity outlet latching mechanismExpiredSep 12, 94Sep 12, 95[B61D]
5404827 Gravity outletExpiredApr 23, 93Apr 11, 95[B61D]
5351625 Weld support for railway tank car underbody constructionExpiredJul 12, 93Oct 04, 94[B61D]
5329859 Increased strength railway tank for underframe construction and method with center sill pocket and weld support for pooling welding materialExpiredJul 12, 93Jul 19, 94[B61D]
5279395 Railway car brake systemExpiredNov 23, 92Jan 18, 94[F16D]
5277128 Railcar gravity multi-ply outlet seal for sliding doorsExpiredJun 18, 92Jan 11, 94[B61D]
5238333 Pneumatic outlet for railcarsExpiredJul 23, 92Aug 24, 93[B65G, B61D]
5178317 Welding method for pneumatic outlet bottom cover assemblyExpiredJun 03, 92Jan 12, 93[B23K]
5159882 Railway car underbody structure and methodExpiredJul 15, 91Nov 03, 92[B61D]
5158022 Hatch vent assembly for railroad cars with baffle and screen mesh to prevent entry of contaminantsExpiredMay 06, 91Oct 27, 92[B61D]
5139374 Trailer sensor for railroad hitchExpiredFeb 04, 91Aug 18, 92[F16B]
5076173 Lifting hook arrangement for railway tank carExpiredAug 27, 90Dec 31, 91[B61K]
5063858 Covered hopper railway car with drop bottom doors and substantially vertical outlets to maximize discharge areaExpiredOct 30, 89Nov 12, 91[B61D]
5059072 Cushioned retractable hitch for railway carsExpiredJul 09, 90Oct 22, 91[B61D, B60P]
D317277 End segment of a railway carExpiredAug 18, 87Jun 04, 91[]
5015131 Hitch retarderExpiredSep 19, 89May 14, 91[B60P]
5004386 Protective cover for railcar hitchExpiredOct 02, 89Apr 02, 91[B60P]
5000358 Low profile pneumatic outletExpiredJun 12, 89Mar 19, 91[B65D]
4944233 Hatch arrangement for covered hopper carsExpiredJun 12, 89Jul 31, 90[B61D, B65D]

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