Granted Patent
Utility
US 4,458,408 · App. 06/484,080
Method for making a light-activated line-operable zero-crossing switch
Inventors:
Paul G. Alonas, David M. Gilbert, Vernon P. O'Neil, II
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Apr 11, 1983
Inventors
Paul G. Alonas
David M. Gilbert
Vernon P. O'Neil, II
Assignee (at issue)
Motorola, 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.