Granted Patent
Utility
US 4,465,004 · App. 06/432,483
Method of forming an eyelet end buttonhole pattern
Inventor:
John W. Wurst
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Oct 4, 1982
Inventor
John W. Wurst
Assignee (at issue)
The Singer Company Limited
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.