Granted Patent
Utility
US 5,927,549 · App. 09/045,387
Dispensing structure with frangible membrane for separating two products
Inventor:
Christopher J. Wood
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Mar 20, 1998
Inventor
Christopher J. Wood
Assignee (at issue)
AptarGroup, 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.