Granted Patent
Utility
US 4,776,574 · App. 07/028,056
Seat belt retractor rewind spring assembly
Inventor:
Dagoberto Krambeck
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Mar 19, 1987
Inventor
Dagoberto Krambeck
Assignee (at issue)
GENERAL SAFETY COMPANY LTD.
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.