Granted Patent
Utility
US 4,577,499 · App. 06/595,502
Slope-speed sensor for seam welding apparatus
Inventors:
Gerald William Silke, Frank Weber
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Jun 18, 1984
Inventors
Gerald William Silke
Frank Weber
Assignee (at issue)
Cyclomatic Industries, 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.