Granted Patent
Utility
US 6,141,921 · App. 09/302,383
Weather barrier for windows and doors
Inventors:
Peter Leeuwenburgh, Randy T. Lear
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Apr 30, 1999
Inventors
Peter Leeuwenburgh
Randy T. Lear
Assignee (at issue)
Manco, 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.