Granted Patent
Utility
US 4,334,628 · App. 06/209,162
Vacuum-tight assembly
Inventors:
Carl F. Buhrer, Alfred E. Feuersanger
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Nov 21, 1980
Inventors
Carl F. Buhrer
Alfred E. Feuersanger
Assignee (at issue)
GTE Laboratories Incorporated
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.