Granted Patent
Utility
US 4,656,156 · App. 06/820,166
Adsorbent and substrate products and method of producing same
Inventor:
Chanakya Misra
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Jan 21, 1986
Inventor
Chanakya Misra
Assignee (at issue)
Aluminum Company of America
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.