Granted Patent
Utility
US 4,786,131 · App. 07/078,592
Star coupler
Inventors:
Amaresh Mahapatra, James M. Connors
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Jul 28, 1987
Inventors
Amaresh Mahapatra
James M. Connors
Assignee (at issue)
Polaroid 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.