Granted Patent
Utility
US 5,705,256 · App. 08/553,116
Method for fabricating optical quality molds with precision microfeatures
Inventor:
Ken Takahashi
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Nov 7, 1995
Inventor
Ken Takahashi
Assignee (at issue)
LUCENT TECHNOLOGIES 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.