Granted Patent
Utility
US 4,027,786 · App. 05/669,305
Apparatus for heating dispensable flowable material
Inventor:
William D. Ryckman, Jr.
Patented Case
View Patent ↗
Granted: Jun 7, 1977
Filed: Mar 22, 1976
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.