Granted Patent
Utility
US 4,731,344 · App. 06/835,990
Method of making a single heterostructure laser chip having sawn cavities and secondary saw cuts
Inventors:
Kevin Canning, Alan J. Perryman
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Mar 4, 1986
Inventors
Kevin Canning
Alan J. Perryman
Assignee (at issue)
STC PLC
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.