Defibrator AB
Records under this name other than patents Defibrator AB holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 5 of 5 · Back to Defibrator AB
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 3,969,184 | Digestion odor control Term ended Term ended no later than Jul 13, 1996 · Low confidence | Term ended | Term ended no later than Jul 13, 1996 | Low confidence |
| US 4,017,356 | Apparatus and method for manufacturing wood pulp by grinding wood block material 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 4,030,969 | Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle 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 4,042,125 | Method and apparatus for stacking and feeding blanks to a tiered multi-opening press for the production of pressed board Term ended Term ended no later than Aug 16, 1997 · Low confidence | Term ended | Term ended no later than Aug 16, 1997 | Low confidence |
| US 4,270,976 | Method of producing peroxide bleached pulp Term ended Term ended no later than Jun 2, 2001 · Low confidence | Term ended | Term ended no later than Jun 2, 2001 | Low confidence |