Granted Patent
Utility
US 4,378,974 · App. 06/386,749
Start-up method for coal gasification plant
Inventors:
Peter J. Petit, Khosrow Farnia
Patented Case
View Patent ↗
Granted: Apr 5, 1983
Filed: Jun 9, 1982
Inventors
Peter J. Petit
Khosrow Farnia
Assignee (at issue)
Allis-Chalmers Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.