Granted Patent
Utility
US 6,289,965 · App. 09/502,733
Take-up drum for a cordless shade counterbalance
Inventor:
Bryan K. Ruggles
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Feb 11, 2000
Inventor
Bryan K. Ruggles
Assignee (at issue)
Newell Operating Co.
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.