Granted Patent
Utility
US 4,522,014 · App. 06/440,633
On-board flap opener
Inventor:
Chris E. Robinson
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Nov 10, 1982
Inventor
Chris E. Robinson
Assignee (at issue)
Figgie Inernational 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.