Granted Patent
Utility
US 4,825,310 · App. 06/918,502
Method and apparatus for recording servo synchronization information
Inventor:
Hubert Song
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Oct 14, 1986
Inventor
Hubert Song
Assignee (at issue)
Konishiroku Photo Industries Co., Ltd.
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.