Granted Patent
Utility
US 4,876,891 · App. 07/203,566
Product-dispensing method and apparatus
Inventors:
George R. Felt, Donna K. Multhauf, Sudhakar S. Wagle
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: May 25, 1988
Inventors
George R. Felt
Donna K. Multhauf
Sudhakar S. Wagle
Assignee (at issue)
Rorer Pharmaceutical 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.