Spin Physics, Inc.
Records under this name other than patents Spin Physics, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 3,999,216 | Material for magnetic transducer heads Formerly held Term ended Term ended no later than Dec 21, 1996 · Low confidence | Term ended | Term ended no later than Dec 21, 1996 | Low confidence |
| US 4,017,899 | Single-track video ferrite record/reproduce head and manufacturing method therefor Formerly held Term ended Term ended no later than Apr 12, 1997 · Low confidence | Term ended | Term ended no later than Apr 12, 1997 | Low confidence |
| US 4,039,156 | Reel Term ended Term ended no later than Aug 2, 1997 · Low confidence | Term ended | Term ended no later than Aug 2, 1997 | Low confidence |
| US 4,040,110 | Video head assembly having discrete arcurate ceramic pieces on rotor between heads Term ended Term ended no later than Aug 2, 1997 · Low confidence | Term ended | Term ended no later than Aug 2, 1997 | Low confidence |
| US 4,084,199 | High density multitrack magnetic head Term ended Term ended no later than Apr 11, 1998 · Low confidence | Term ended | Term ended no later than Apr 11, 1998 | Low confidence |
| US 4,101,348 | Process for preparing hot-pressed sintered alloys Term ended Term ended no later than Jul 18, 1998 · Low confidence | Term ended | Term ended no later than Jul 18, 1998 | Low confidence |
| US 4,114,259 | Method of making a high density multitrack magnetic head Term ended Term ended no later than Sep 19, 1998 · Low confidence | Term ended | Term ended no later than Sep 19, 1998 | Low confidence |
| US 4,158,213 | Multitrack magnetic heads Term ended Term ended no later than Jun 12, 1999 · Low confidence | Term ended | Term ended no later than Jun 12, 1999 | Low confidence |
| US 4,193,098 | Segmented video playback apparatus with ancillary recording medium Formerly held Term ended Term ended no later than Mar 11, 2000 · Low confidence | Term ended | Term ended no later than Mar 11, 2000 | Low confidence |
| US 4,227,129 | Apparatus for detecting the speed of an electric motor Formerly held Term ended Term ended no later than Oct 7, 2000 · Low confidence | Term ended | Term ended no later than Oct 7, 2000 | Low confidence |