Montgomery Elevator Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5255771 Combplate safety deviceJul 18, 91Oct 26, 93[B65G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5394961 Safety edge assembly for elevator doorwaysExpiredApr 29, 93Mar 07, 95[B66B]
5277505 Adhesive attaching systemExpiredDec 31, 92Jan 11, 94[F16B]
5224580 Power transmission system for a passenger conveyorExpiredJun 15, 92Jul 06, 93[B66B]
5205391 Adhesive attaching systemExpiredJul 16, 92Apr 27, 93[B65G, B66B]
5194797 Procedure for the regulation of an asynchronous motorExpiredJun 10, 91Mar 16, 93[H02P]
5161668 Guide mechanism for passenger conveyorsExpiredJul 18, 91Nov 10, 92[B66B]
5125494 Handrail drive mechanism for a passenger conveyorExpiredSep 04, 91Jun 30, 92[B66B]
5115900 Handrail air cushionExpiredSep 03, 91May 26, 92[B65G]
4936419 Elevator diagnostic display systemExpiredOct 26, 88Jun 26, 90[B66B]
4898263 Elevator self-diagnostic control systemExpiredSep 12, 88Feb 06, 90[B66B]
4875552 Modular elevator cab constructionExpiredJul 01, 88Oct 24, 89[E04B, B66B]
4875553 Modular elevator cab constructionExpiredJul 01, 88Oct 24, 89[E04B, B66B]
4785916 Call registration and acknowledgement system for an elevator and method of testing such systemExpiredMay 08, 86Nov 22, 88[B66B]
4779707 Modular elevator cab constructionExpiredJul 29, 86Oct 25, 88[B66B]
4630026 Elevator position indicating systemExpiredMar 29, 83Dec 16, 86[B66B]
4364203 Modular sheet metal door structureExpiredNov 06, 80Dec 21, 82[E05D]
4313525 Car door safety interlockExpiredJun 05, 80Feb 02, 82[B66B]
4246983 Elevator controlExpiredMar 31, 78Jan 27, 81[B66B]
4219979 Decorative jamb structure for elevator entrancewaysExpiredDec 15, 78Sep 02, 80[E06B]

Top Inventors for This Owner

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