SANFORD ACQUISITION COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 487
 
  
 
F16H GEARING199
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6186029 Dual input transmissionJul 09, 97Feb 13, 01[F16H]
5957250 Brake shoe assembly formed using hot staking methodDec 05, 97Sep 28, 99[F16D]
5839550 Brake shoe assembly and method of formingSep 16, 96Nov 24, 98[F16D]
5695026 Brake shoe assembly formed using hot staking methodAug 22, 94Dec 09, 97[F16D]
5503256 Brake shoe assembly and method of formingAug 22, 94Apr 02, 96[F16D]
5436788 Electronic control apparatus for the switching of several electrical load resistances and monitoring information switch positionsDec 09, 92Jul 25, 95[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5934415 Brake actuator service limit sensorExpiredMay 27, 97Aug 10, 99[F16D]
5693985 Programmable trailer indentification system integrated into a truck tractor and trailer communication systemExpiredFeb 24, 97Dec 02, 97[B60D]
5613588 Clutch coolant flow control deviceExpiredFeb 02, 95Mar 25, 97[F16D]
4611506 Hydraulically actuated planetary wheel driveExpiredApr 29, 83Sep 16, 86[F16D, F16H]
4596313 Centering device for floating caliper brakesExpiredMar 26, 85Jun 24, 86[F16D]
4579351 Dual spring expander for oil control piston ringsExpiredMar 05, 85Apr 01, 86[F16J]
4463842 Lockup control system for torque converterExpiredDec 16, 81Aug 07, 84[B60K, F16H]
4299401 Piston ring and method of making sameExpiredSep 12, 79Nov 10, 81[F16J]
4256318 Piston ringExpiredApr 28, 80Mar 17, 81[F16J]
4251599 Ferrous metal body coated with an alloy formed by an iron/silicon extended molybdenum plasma spray powderExpiredAug 23, 79Feb 17, 81[B05B, B22F]
4247972 Method of manufacturing a piston ringExpiredJan 26, 79Feb 03, 81[B23P]
4248440 Titania-alumina-yttria piston ring facingExpiredSep 12, 79Feb 03, 81[C04B, F16J]
4214762 Rolled metal piston ringExpiredAug 03, 78Jul 29, 80[F16J]
4204688 Oil control ring spacer-expander with improved slip latchExpiredSep 08, 76May 27, 80[F16J]

Top Inventors for This Owner

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