Granted Patent
Utility
US 4,522,865 · App. 06/524,258
Hot press-forging of an optical body with dynamic constraint by crystal powder
Inventor:
Herbert Packer
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Aug 18, 1983
Inventor
Herbert Packer
Assignee (at issue)
Harshaw/Filtrol Partnership
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.