Granted Patent
Utility
US 4,998,947 · App. 07/436,214
Corner cap structure and method
Inventors:
Gregory W. Dostall, Thomas J. Saloom
Patented Case
View Patent ↗
Granted: Mar 12, 1991
Filed: Nov 14, 1989
Inventors
Gregory W. Dostall
Thomas J. Saloom
Assignee (at issue)
Alcan Aluminum 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.