Granted Patent
Utility
US 6,774,594 · App. 10/373,524
Asymmetric drive motor for a barrier operator or the like
Inventors:
James J. Fitzgibbon, Edward Laird, Colin B. Willmott
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Feb 24, 2003
Inventors
James J. Fitzgibbon
Edward Laird
Colin B. Willmott
Assignee (at issue)
THE CHAMBERLAIN GROUP 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.