Granted Patent
Utility
US 4,278,414 · App. 06/012,822
Apparatus for making plastic skylights
Inventors:
Kent A. Weisner, Lester L. Walls, Jr.
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Feb 16, 1979
Inventors
Kent A. Weisner
Lester L. Walls, Jr.
Assignee (at issue)
Kennedy Sky-Lites, 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.