Granted Patent
Utility
US 6,073,312 · App. 08/799,056
Collapsible knob assembly and retaining spring therefor
Inventors:
Phuc B. Dao, Douglas Scott Vanbibber, James Norman Miller
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Feb 10, 1997
Inventors
Phuc B. Dao
Douglas Scott Vanbibber
James Norman Miller
Assignee (at issue)
DELCO ELECTRONICS CORPORATION
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.