Granted Patent
Utility
US 5,387,151 · App. 08/115,896
Top sealing chimney cap
Inventor:
Walter Sexton
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Sep 1, 1993
Inventor
Walter Sexton
Assignee (at issue)
Lyemance International
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.