Granted Patent
Utility
US 6,029,475 · App. 09/109,702
Batching of molten glass in the production of graded index of refraction glass bodies
Inventors:
Oleg Y. Abramov, Stanislav A. Koltchanov, Leila V. Laisheva
Patented Case
View Patent ↗
Granted: Feb 29, 2000
Filed: Jun 30, 1998
Inventors
Oleg Y. Abramov
Stanislav A. Koltchanov
Leila V. Laisheva
Assignee (at issue)
LightPath 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.