Granted Patent
Utility
US 4,387,585 · App. 06/224,813
Spring coiling machine with improved coil starter means
Inventors:
Erman V. Cavagnero, Stanley M. Waligura
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Jan 13, 1981
Inventors
Erman V. Cavagnero
Stanley M. Waligura
Assignee (at issue)
Torin Corporation
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.