Granted Patent
Utility
US 5,101,883 · App. 07/722,766
Method of assembly of single and multi-zone vehicle heating and a/c systems
Inventors:
Jeffrey C. Kinmartin, Frank C. Falzone, Donald E. Hoffman
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Jun 27, 1991
Inventors
Jeffrey C. Kinmartin
Frank C. Falzone
Donald E. Hoffman
Assignee (at issue)
General Motors LLC
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.