Granted Patent
Utility
US 4,238,871 · App. 05/907,633
Slide fastener installation
Inventor:
Robert E. Cannon
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: May 19, 1978
Inventor
Robert E. Cannon
Assignee (at issue)
Textron 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.