Granted Patent
Utility
US 4,377,368 · App. 06/215,093
Escapement mechanism
Inventor:
Richard L. Koch
Patented Case
View Patent ↗
Granted: Mar 22, 1983
Filed: Dec 10, 1980
Inventor
Richard L. Koch
Assignee (at issue)
F. Jos. Lamb Company
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.