Granted Patent
Utility
US 5,887,575 · App. 08/927,003
Air intake heater with vertically oriented heating elements
Inventors:
Jan P. Thimmesch, Bradley Allen Hemish
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Sep 10, 1997
Inventors
Jan P. Thimmesch
Bradley Allen Hemish
Assignee (at issue)
Phillips & Temro Industries 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.