Granted Patent
Utility
US 5,204,927 · App. 07/844,216
Method and apparatus for making a fiber optical coupler
Inventors:
Aland K. Chin, Jeffrey Bisberg
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Mar 2, 1992
Inventors
Aland K. Chin
Jeffrey Bisberg
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.