Granted Patent
Utility
US 6,433,498 · App. 09/551,978
Head rail-mounted actuator for window coverings
Inventors:
Douglas R. Domel, Winston G. Walker
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Apr 14, 2000
Inventors
Douglas R. Domel
Winston G. Walker
Assignee (at issue)
HARMONIC DESIGN, 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.