Granted Patent
Utility
US 5,260,828 · App. 07/858,522
Methods and means for reducing temperature-induced variations in lenses and lens devices
Inventors:
Carmina Londono, William T. Plummer
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Mar 27, 1992
Inventors
Carmina Londono
William T. Plummer
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.