The Patent Finder

Sobel, Alan,

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

Back to Sobel, Alan,

PatentTitleStatus Expires Confidence
US 3,969,650Gas discharge display device and a novel hollow cathode therefor
Term ended
Term ended no later than Jul 13, 1996 · Low confidence
Term endedTerm ended no later than Jul 13, 1996Low confidence
US 4,099,082Stacked lattice spacer support for luminescent display panels
Term ended
Term ended no later than Jul 4, 1998 · Low confidence
Term endedTerm ended no later than Jul 4, 1998Low confidence
US 4,183,125Method of making an insulator-support for luminescent display panels and the like
Term ended
Term ended no later than Jan 15, 2000 · Low confidence
Term endedTerm ended no later than Jan 15, 2000Low confidence
US 4,303,847Flat-panel display with gas-impervious metallic sheet forming part of sealed enclosure
Term ended
Term ended no later than Dec 1, 2001 · Low confidence
Term endedTerm ended no later than Dec 1, 2001Low confidence
US 4,322,659Gas-discharge devices and display panels
Term ended
Term ended no later than Mar 30, 2002 · Low confidence
Term endedTerm ended no later than Mar 30, 2002Low confidence
US 4,339,482Flat-panel display and method of manufacture
Term ended
Term ended no later than Jul 13, 2002 · Low confidence
Term endedTerm ended no later than Jul 13, 2002Low confidence
US 4,352,101Flat panel display system
Term ended
Term ended no later than Sep 28, 2002 · Low confidence
Term endedTerm ended no later than Sep 28, 2002Low confidence
US 4,393,334Electron acceleration in ionizable gas
Term ended
Term ended no later than Jul 12, 2003 · Low confidence
Term endedTerm ended no later than Jul 12, 2003Low confidence
US 4,395,244Method of making a display panel
Term ended
Term ended no later than Jul 26, 2003 · Low confidence
Term endedTerm ended no later than Jul 26, 2003Low confidence
US 4,422,014Method and apparatus for obtaining a focusable beam of electrons from a gaseous hollow-cathode discharge
Term ended
Term ended no later than Dec 20, 2003 · Low confidence
Term endedTerm ended no later than Dec 20, 2003Low confidence
10 of 12 patents shown.
Pro members see all 12.
Pro members: see all 12 patents
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited