The Patent Finder

FFE Limited

Also on record
Records under this name other than the patents FFE Limited holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 4 patents it holds.

Showing 1 to 8 of 8 · Back to FFE Limited

PatentTitleStatus Expires Confidence
US D664,874Fire detector
Term ended
Term ended Aug 7, 2026 · From the USPTO record
Term endedTerm ended Aug 7, 2026From the USPTO record
US 4,753,445Adjustable cylinder transport cart
Formerly held
Term ended
Term ended no later than Jun 28, 2008 · Low confidence
Term endedTerm ended no later than Jun 28, 2008Low confidence
US 5,071,148Cylinder cart having gauge guard
Formerly held
Term ended
Term ended no later than Dec 10, 2011 · Low confidence
Term endedTerm ended no later than Dec 10, 2011Low confidence
US 5,088,685Gas cylinder ring assembly
Formerly held
Term ended
Term ended no later than Feb 18, 2012 · Low confidence
Term endedTerm ended no later than Feb 18, 2012Low confidence
US 5,145,311Cylindrical tank lift with four wheels for mobility and stability
Formerly held
Term ended
Term ended no later than Sep 8, 2012 · Low confidence
Term endedTerm ended no later than Sep 8, 2012Low confidence
US 5,180,179Gas cylinder cart removable handle
Formerly held
Term ended
Term ended no later than Jan 19, 2013 · Low confidence
Term endedTerm ended no later than Jan 19, 2013Low confidence
US 5,261,559Gas cylinder ring assembly
Formerly held
Term ended
Term ended no later than Nov 16, 2013 · Low confidence
Term endedTerm ended no later than Nov 16, 2013Low confidence
US 5,445,399Retractable hand truck having positive leg lock
Formerly held
Term ended
Term ended no later than Aug 29, 2015 · Low confidence
Term endedTerm ended no later than Aug 29, 2015Low confidence
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited