Granted Patent
Utility
US 5,376,158 · App. 07/952,730
Method for vacuum impulse forming of heated glass sheets
Inventors:
Donivan M. Shetterly, Christopher A. Hersch
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Nov 19, 1992
Inventors
Donivan M. Shetterly
Christopher A. Hersch
Assignee (at issue)
Glasstech, Inc.
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.