LIVERNOIS RESEARCH & DEVELOPMENT COMPANY

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5732584 Method and apparatus for roll forming convoluted springsExpiredAug 29, 96Mar 31, 98[B21D]
5701781 System and method for controlling movement of a transfer systemExpiredJul 09, 96Dec 30, 97[B21D]
5558069 Method and apparatus for fluid temperature controlExpiredNov 09, 95Sep 24, 96[F02M]
5452883 Gas springExpiredJun 02, 94Sep 26, 95[F16F]
5386975 Gas die cylindersExpiredDec 08, 93Feb 07, 95[F16F]
5088698 Sealing construction for a gas springExpiredNov 08, 89Feb 18, 92[F16F]
5007817 Press with die cushion gas monitorExpiredJan 19, 90Apr 16, 91[B30B]
4934230 Die stamping systemExpiredAug 24, 88Jun 19, 90[B26D, B21D]
4774865 Die stamping systemExpiredSep 22, 87Oct 04, 88[B21D]
4753906 Dielectric ceramic composition for microwave applicationExpiredOct 29, 86Jun 28, 88[C04B]
4742997 Gas spring with separate charging and pressure relief valvesExpiredAug 26, 86May 10, 88[F16K, F16F]
4741518 Self contained gas spring interchangeable with coil springExpiredAug 26, 86May 03, 88[F01B, F16F]
4665733 Die clampExpiredJul 18, 85May 19, 87[B25B, B21D]
4628796 Nitrogen die cylinderExpiredJun 14, 84Dec 16, 86[F01B]
4590788 Die clampExpiredOct 04, 84May 27, 86[B21D]
4343228 Hydraulic cylinder arrangementExpiredNov 05, 80Aug 10, 82[F15B]
4342448 Gas-operated cylinderExpiredApr 04, 80Aug 03, 82[F16F]
4339976 Punch retainerExpiredAug 11, 80Jul 20, 82[B26D, B26F]
4332179 Combined punch retainer and fluid-actuated stripperExpiredOct 08, 80Jun 01, 82[B21D]
4326402 Stock lifter for progressive diesExpiredApr 18, 80Apr 27, 82[B21J]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.