Granted Patent
Utility
US 4,176,014 · App. 06/000,036
Process for the production of coin blanks
Inventors:
Michael J. H. Ruscoe, Maurice A. Clegg, Willie Seibt, Kshitindra M. Sarkar
Patented Case
View Patent ↗
Granted: Nov 27, 1979
Filed: Jan 2, 1979
Inventors
Michael J. H. Ruscoe
Maurice A. Clegg
Willie Seibt
Kshitindra M. Sarkar
Assignee (at issue)
Sherritt Gordon Mines 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.