Granted Patent
Utility
US 4,828,367 · App. 07/156,258
Interferometer bearing assembly
Inventors:
Raul Curbelo, David C. Brown
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Feb 16, 1988
Inventors
Raul Curbelo
David C. Brown
Assignee (at issue)
Bio-Rad Laboratories, 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.