Granted Patent
Utility
US 6,042,417 · App. 09/111,142
Power feed adapter
Inventors:
Frederick M. Hensley, L. C. Derek Chamberlain
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Jul 7, 1998
Inventors
Frederick M. Hensley
L. C. Derek Chamberlain
Assignee (at issue)
Schlage Lock Company LLC
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.