Granted Patent
Utility
US 4,069,949 · App. 05/641,674
Apparatus for heating and dispensing flowable material
Inventor:
William D. Ryckman, Jr.
Patented Case
View Patent ↗
Granted: Jan 24, 1978
Filed: Dec 17, 1975
Inventor
William D. Ryckman, Jr.
Assignee (at issue)
General Electric Company
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.