Polysar Limited
Records under this name other than patents Polysar Limited holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 3,943,093 | Process for minimizing heat-promoted interaction between brominated butyl and carbon black during compounding Term ended Term ended no later than Mar 9, 1996 · Low confidence | Term ended | Term ended no later than Mar 9, 1996 | Low confidence |
| US 3,943,192 | Elastomeric blends Term ended Term ended no later than Mar 9, 1996 · Low confidence | Term ended | Term ended no later than Mar 9, 1996 | Low confidence |
| US 3,959,204 | Latex stability by addition of fluoride salts 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 3,960,988 | Vulcanization of bromobutyl Term ended Term ended no later than Jun 1, 1996 · Low confidence | Term ended | Term ended no later than Jun 1, 1996 | Low confidence |
| US 3,969,330 | Amine modified polymers 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 3,976,608 | Filled thermoplastic Term ended Term ended no later than Aug 24, 1996 · Low confidence | Term ended | Term ended no later than Aug 24, 1996 | Low confidence |
| US 3,992,151 | Method for determining aluminum halide solution concentrations Term ended Term ended no later than Nov 16, 1996 · Low confidence | Term ended | Term ended no later than Nov 16, 1996 | Low confidence |
| US 4,001,484 | Transparent solvent and heat resistant terpolymer compositions Term ended Term ended no later than Jan 4, 1997 · Low confidence | Term ended | Term ended no later than Jan 4, 1997 | Low confidence |
| US 4,004,075 | Packaging films Term ended Term ended no later than Jan 18, 1997 · Low confidence | Term ended | Term ended no later than Jan 18, 1997 | Low confidence |
| US 4,005,053 | Polymer-oil-black masterbatch Term ended Term ended no later than Jan 25, 1997 · Low confidence | Term ended | Term ended no later than Jan 25, 1997 | Low confidence |