ROBERTSON-CECO CORPORATION, A DE CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0011,154 Roof systems and panel clip arrangements thereforAbandonedApr 19, 04Jan 20, 05[E04B]
5253459 Curtain wall structureExpiredJun 24, 91Oct 19, 93[E06B]
5220759 Curtain wall systems having improved vertical frame memberExpiredOct 18, 91Jun 22, 93[E04B]
5129151 Roof panel module gaugeExpiredDec 26, 91Jul 14, 92[B25B, G01D]
5065557 Curtain wall system with individually removable wall panelsExpiredNov 01, 90Nov 19, 91[E04B]
4718217 Settling systems for bag-in-box machinesExpiredAug 04, 86Jan 12, 88[B65B]
4656795 Floor panel for elevated floor assemblyExpiredNov 29, 84Apr 14, 87[E04F]
4621472 Glazed structural system and components thereforExpiredJan 07, 85Nov 11, 86[E04B]
4558544 Adjustable pedestal for elevated floorsExpiredNov 29, 84Dec 17, 85[B66F]
4465897 Three-service wire distributing unit and outlet means thereforExpiredMay 10, 82Aug 14, 84[H02G]
4435934 Prefabricated panel construction systemExpiredJul 01, 81Mar 13, 84[E04C]
4403980 Prefabricated watertight structural systemExpiredOct 22, 75Sep 13, 83[E04D]
4373312 Prefabricated panel construction systemExpiredSep 09, 80Feb 15, 83[E04C]
4372901 Prefabricated panel construction systemExpiredFeb 03, 81Feb 08, 83[B29D]
4372014 Construction system and fastener thereforeExpiredDec 31, 75Feb 08, 83[A44B]
4355269 Motor heating control with interlocked dual isolating switchesExpiredJul 23, 81Oct 19, 82[H02P]
4296582 Construction system and fasteners thereforeExpiredDec 31, 75Oct 27, 81[E04C]
4295304 Prefabricated panel construction systemExpiredApr 04, 78Oct 20, 81[E04B, E04C]
4248021 Support means for wall or roof structureExpiredAug 22, 79Feb 03, 81[E04B]
4196554 Roof panel jointExpiredAug 09, 78Apr 08, 80[E04D]

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