Double A Products 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Expired/Abandoned/Withdrawn Patents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
4574843 Solenoid valve override cartridgeExpiredMay 26, 83Mar 11, 86[F15B]
4474104 Control system for variable displacement pumps and motorsExpiredApr 11, 83Oct 02, 84[F01B]
D273699 Solenoid operated valveExpiredMar 18, 81May 01, 84[]
4418720 Solenoid operated directional valves having modular constructionExpiredMar 06, 81Dec 06, 83[F15B]
4412196 Solenoid for directional valvesExpiredApr 08, 82Oct 25, 83[H01F]
4406307 Directional valve with spool transfer loopExpiredMar 31, 81Sep 27, 83[F15B]
4375226 Valve body for solenoid operated directional valveExpiredApr 28, 80Mar 01, 83[F16K]
4353394 Solenoid operated directional valve with detent mechanismExpiredFeb 27, 81Oct 12, 82[F15B]
4308891 Terminal blocks and indicator for solenoid valvesExpiredMar 31, 80Jan 05, 82[F16K]
4293284 Power limiting control apparatus for pressure-flow compensated variable displacement pump assembliesExpiredOct 09, 79Oct 06, 81[F04B]
4194173 Solenoid constructionExpiredAug 14, 78Mar 18, 80[H01F]
4185661 Solenoid operated directional valve with detent mechanismExpiredAug 17, 78Jan 29, 80[F16K, F15B]

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!.