The Patent Finder

Extrel FTMS

Also on record
Records under this name other than patents Extrel FTMS holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Back to Extrel FTMS

PatentTitleStatus Expires Confidence
US 3,937,955Fourier transform ion cyclotron resonance spectroscopy method and apparatus
Formerly held
Term ended
Term ended no later than Feb 10, 1996 · Low confidence
Term endedTerm ended no later than Feb 10, 1996Low confidence
US 4,487,332Cryostat vessel wall spacing system
Term ended
Term ended no later than Dec 11, 2004 · Low confidence
Term endedTerm ended no later than Dec 11, 2004Low confidence
US 4,581,533Mass spectrometer and method
Term ended
Term ended no later than Apr 8, 2006 · Low confidence
Term endedTerm ended no later than Apr 8, 2006Low confidence
US 4,588,888Mass spectrometer having magnetic trapping
Term ended
Term ended no later than May 13, 2006 · Low confidence
Term endedTerm ended no later than May 13, 2006Low confidence
US 4,594,506Gas chromatograph/mass spectrometer interface
Term ended
Term ended no later than Jun 10, 2006 · Low confidence
Term endedTerm ended no later than Jun 10, 2006Low confidence
US 4,668,864Mass spectrometer
Term ended
Term ended no later than May 26, 2007 · Low confidence
Term endedTerm ended no later than May 26, 2007Low confidence
US 4,688,864Electronic circuit constituted by stackable modules
Term ended
Term ended no later than Aug 25, 2007 · Low confidence
Term endedTerm ended no later than Aug 25, 2007Low confidence
US 4,739,165Mass spectrometer with remote ion source
Term ended
Term ended no later than Apr 19, 2008 · Low confidence
Term endedTerm ended no later than Apr 19, 2008Low confidence
US 4,874,943Mass spectrometer ion excitation system
Term ended
Term ended no later than Oct 17, 2009 · Low confidence
Term endedTerm ended no later than Oct 17, 2009Low confidence
US 4,933,547Method for external calibration of ion cyclotron resonance mass spectrometers
Term ended
Term ended no later than Jun 12, 2010 · Low confidence
Term endedTerm ended no later than Jun 12, 2010Low confidence
10 of 13 patents shown.
Pro members see all 13.
Pro members: see all 13 patents
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