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Aspro, Inc.

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Records under this name other than patents Aspro, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

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PatentTitleStatus Expires Confidence
US 3,930,424Multi-shell limited slip differential
Term ended
Term ended no later than Jan 6, 1996 · Low confidence
Term endedTerm ended no later than Jan 6, 1996Low confidence
US 3,931,872Reversible overrunning clutch with automatic shift control and friction reducing means
Term ended
Term ended no later than Jan 13, 1996 · Low confidence
Term endedTerm ended no later than Jan 13, 1996Low confidence
US 3,961,309High-low tire pressure signal switch
Term ended
Term ended no later than Jun 1, 1996 · Low confidence
Term endedTerm ended no later than Jun 1, 1996Low confidence
US 3,964,346Limited slip differential including conical pinion and side gears
Term ended
Term ended no later than Jun 22, 1996 · Low confidence
Term endedTerm ended no later than Jun 22, 1996Low confidence
US 3,977,264Method of making poly-V pulleys and product
Term ended
Term ended no later than Aug 31, 1996 · Low confidence
Term endedTerm ended no later than Aug 31, 1996Low confidence
US 3,981,545Traction control apparatus
Term ended
Term ended no later than Sep 21, 1996 · Low confidence
Term endedTerm ended no later than Sep 21, 1996Low confidence
US 3,991,598Method of roller spinning cup-shaped metal blanks
Term ended
Term ended no later than Nov 16, 1996 · Low confidence
Term endedTerm ended no later than Nov 16, 1996Low confidence
US 3,994,181Noise-dampened pulley construction
Term ended
Term ended no later than Nov 30, 1996 · Low confidence
Term endedTerm ended no later than Nov 30, 1996Low confidence
US 3,995,474Method of making spun V-grooved sheet metal pulleys
Term ended
Term ended no later than Dec 7, 1996 · Low confidence
Term endedTerm ended no later than Dec 7, 1996Low confidence
US 3,999,636Self-adjusting brake construction
Term ended
Term ended no later than Dec 28, 1996 · Low confidence
Term endedTerm ended no later than Dec 28, 1996Low confidence
10 of 33 patents shown.
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Pro members: see all 33 patents
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