Granted Patent
Utility
US 4,138,038 · App. 05/817,864
Dispensing pump housing and operating lever assembly
Inventor:
Richard P. Grogan
Patented Case
View Patent ↗
Granted: Feb 6, 1979
Filed: Jul 21, 1977
Inventor
Richard P. Grogan
Assignee (at issue)
Diamond International Corporation
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.