Granted Patent
Utility
US 4,507,330 · App. 06/525,339
Plating method using expandable masking bed
Inventor:
Theodore F. Schaaf
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Aug 22, 1983
Inventor
Theodore F. Schaaf
Assignee (at issue)
AT&T Technologies Incorporated
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.