Surface Combustion, Inc.
Records under this name other than the patents Surface Combustion, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 2 patents it holds.
Back to Surface Combustion, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,033,446 | Vacuum carburizing with unsaturated aromatic hydrocarbons Term ended Term ended May 31, 2024 · From the USPTO record | Term ended | Term ended May 31, 2024 | From the USPTO record |
| US 6,991,687 | Vacuum carburizing with napthene hydrocarbons Term ended Term ended Dec 4, 2022 · From the USPTO record | Term ended | Term ended Dec 4, 2022 | From the USPTO record |
| US 7,204,952 | Vacuum furnace for carburizing with hydrocarbons Term ended Term ended Jul 26, 2022 · From the USPTO record | Term ended | Term ended Jul 26, 2022 | From the USPTO record |
| US 7,267,793 | Furnace for vacuum carburizing with unsaturated aromatic hydrocarbons Term ended Term ended Jul 26, 2022 · From the USPTO record | Term ended | Term ended Jul 26, 2022 | From the USPTO record |
| US 6,283,749 | Inside/out, industrial vacuum furnace Term ended Term ended Jun 2, 2020 · From the USPTO record | Term ended | Term ended Jun 2, 2020 | From the USPTO record |
| US 6,505,483 | Glass transportation system Formerly held Term ended Term ended Feb 25, 2020 · From the USPTO record | Term ended | Term ended Feb 25, 2020 | From the USPTO record |
| US 4,247,284 | Internal cooling of heat exchanger tubes Term ended Term ended no later than Jan 27, 2001 · Low confidence | Term ended | Term ended no later than Jan 27, 2001 | Low confidence |
| US 4,249,893 | Internal cooling of heat exchanger tubes Term ended Term ended no later than Feb 10, 2001 · Low confidence | Term ended | Term ended no later than Feb 10, 2001 | Low confidence |
| US 4,249,965 | Method of generating carrier gas Term ended Term ended no later than Feb 10, 2001 · Low confidence | Term ended | Term ended no later than Feb 10, 2001 | Low confidence |
| US 4,255,128 | Container for baking carbon products Term ended Term ended no later than Mar 10, 2001 · Low confidence | Term ended | Term ended no later than Mar 10, 2001 | Low confidence |