Bakerdrill, Inc.

Also on record

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

Showing 1 to 10 of 10 · Back to Bakerdrill, Inc.

Patent	Title	Status	Expires	Confidence
US 3,934,662	Core bit Term ended Term ended no later than Jan 27, 1996 · Low confidence	Term ended	Term ended no later than Jan 27, 1996	Low confidence
US 3,941,196	Percussive air hammer and core bit apparatus Term ended Term ended no later than Mar 2, 1996 · Low confidence	Term ended	Term ended no later than Mar 2, 1996	Low confidence
US 3,944,003	Bore hole air hammer Term ended Term ended no later than Mar 16, 1996 · Low confidence	Term ended	Term ended no later than Mar 16, 1996	Low confidence
US 3,948,588	Swivel for core drilling Term ended Term ended no later than Apr 6, 1996 · Low confidence	Term ended	Term ended no later than Apr 6, 1996	Low confidence
US 3,958,645	Bore hole air hammer Term ended Term ended no later than May 25, 1996 · Low confidence	Term ended	Term ended no later than May 25, 1996	Low confidence
US 3,970,335	Dual concentric pipes Term ended Term ended no later than Jul 20, 1996 · Low confidence	Term ended	Term ended no later than Jul 20, 1996	Low confidence
US 4,030,554	Bore hole airhammer and anvil bit Term ended Term ended no later than Jun 21, 1997 · Low confidence	Term ended	Term ended no later than Jun 21, 1997	Low confidence
US 4,102,418	Borehole drilling apparatus Term ended Term ended no later than Jul 25, 1998 · Low confidence	Term ended	Term ended no later than Jul 25, 1998	Low confidence
US 4,146,097	Bore hole air hammer Term ended Term ended no later than Mar 27, 1999 · Low confidence	Term ended	Term ended no later than Mar 27, 1999	Low confidence
US 4,278,135	Variable volume pneumatic drill Formerly held Term ended Term ended no later than Jul 14, 2001 · Low confidence	Term ended	Term ended no later than Jul 14, 2001	Low confidence