Granted Patent
Utility
US 5,478,599 · App. 08/417,479
Process for resin impregnation of a fibrous substrate
Inventors:
Shridhar R. Iyer, C. Shirrell
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Apr 5, 1995
Inventors
Shridhar R. Iyer
C. Shirrell
Assignee (at issue)
SHELL OIL COMPANY
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.