Granted Patent
Utility
US 4,024,780 · App. 05/587,605
Flying rotary saw
Inventor:
Jerzy F. Patejak
Patented Case
View Patent ↗
Granted: May 24, 1977
Filed: Jun 17, 1975
Inventor
Jerzy F. Patejak
Assignee (at issue)
Aetna-Standard Engineering 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.