Granted Patent
Utility
US 6,159,398 · App. 09/052,586
Method of making replicas while preserving master
Inventors:
Gajendra D. Savant, Abbas Hosseini
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Mar 31, 1998
Inventors
Gajendra D. Savant
Abbas Hosseini
Assignee (at issue)
PHYSICAL OPTICS 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.