Granted Patent
Utility
US 4,349,996 · App. 06/143,261
Integrated roof system
Inventors:
Richard W. Lautensleger, Richard D. Shepard, Paul A. Seaburg
Patented Case
View Patent ↗
Granted: Sep 21, 1982
Filed: Apr 24, 1980
Inventors
Richard W. Lautensleger
Richard D. Shepard
Paul A. Seaburg
Assignee (at issue)
Armco Inc.
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.