Granted Patent
Utility
US 6,729,488 · App. 09/971,470
Tamper-indicating closure with resilient locking projections
Inventors:
Drew McNary, William D. Armstrong
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Oct 5, 2001
Inventors
Drew McNary
William D. Armstrong
Assignee (at issue)
Captive Plastics, 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.