Granted Patent
Utility
US 5,957,886 · App. 08/913,254
Spring-Powered dispensing device
Inventor:
Terence Edward Weston
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Sep 10, 1997
Inventor
Terence Edward Weston
Assignee (at issue)
Weston Medical 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.