Granted Patent
Utility
US 4,903,828 · App. 07/023,061
Bottle closure cap for two-component packages
Inventors:
Robert G. Finke, Clemens Schumacher
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Mar 6, 1987
Inventors
Robert G. Finke
Clemens Schumacher
Assignee (at issue)
Robert Finke Kommanditgesellschaft
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.