Granted Patent
Utility
US 5,238,152 · App. 07/840,784
Quick-locking child resistant bottle cap assembly
Inventors:
Wilhelmus Johannes Joseph Maas, Petrus Lambertus Wilhelmus Hurkmans
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Feb 24, 1992
Inventors
Wilhelmus Johannes Joseph Maas
Petrus Lambertus Wilhelmus Hurkmans
Assignee (at issue)
AFA Products, 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.