Granted Patent
Utility
US 4,581,875 · App. 06/506,134
Process for forming tamper-resistant tamper-indicative capsules
Inventors:
Donald N. MacLaughlin, Vincent E. Fortuna
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Jun 20, 1983
Inventors
Donald N. MacLaughlin
Vincent E. Fortuna
Assignee (at issue)
Cosden Technology, Inc.
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.