Granted Patent
Utility
US 5,899,039 · App. 09/012,633
Method for installing a suspended ceiling in a storage tank
Inventors:
Michael P. Duff, David M. O'Meara, Mark S. Kabala, Glenn Riley, Robert Gabriel Walter
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Jan 23, 1998
Inventors
Michael P. Duff
David M. O'Meara
Mark S. Kabala
Glenn Riley
Robert Gabriel Walter
Assignee (at issue)
Chicago Bridge & Iron Co.
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.